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| DDD Find the circumference of the circle whose radius is 5.2 cm. DDD |
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| DDD The circumference of a circle is 20π cm. Find its radius. DDD |
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DDD The diameter of a cart wheel is 2.3 m. How much distance will it cover if it makes 20 revolutions?
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| DDD The radius of a bicycle wheel is 60 cm. How many revolutions does the wheel make when the bicycle travels 360 m? [Take π = 3.] DDD |
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| DDD Circumference of a circle is given as 42π m. Find the radius of the circle. DDD |
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DDD Find the length of the arc of a semicircle whose radius is 5 in..
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| DDD The circumference of a circle is 100π cm. Find the length of an arc whose measure is 72o. DDD |
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| DDD Find the circumference of a circle in which a right triangle of base (b) 16.5 cm and height (h) 22 cm is inscribed. [Take π = 3.] DDD |
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| DDD If the diameter of the circle shown is 20 in., then find the length of arc MN. DDD |
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| DDD Find the length of arc RP from figure. [Given: (x1, y1) = (-3, 1) and (x2, y2) = (0, 5).] DDD |
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| DDD An athlete was running on a circular track of diameter 80 m. He first started at a point and ran 23 distance of the track length, in clockwise direction and ran 13 distance of the track length, in anti clockwise direction. Find the total distance he ran. [Approximate the distance to the nearest integer.] [Take π = 3.] DDD |
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DDD If m∠θ = 10 and AB = 3 units, then find the length of arc BX.
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| DDD Find the perimeter of the figure if a = 2.50 cm, b = 10 cm, c = 9 cm. DDD |
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| DDD The length of an arc is 2π cm and its measure is 120o. Find the radius of the circle. DDD |
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DDD Semi circles are drawn on a line of length 2 m as shown. The first semicircle has a radius of 12 cm. Radius of each consecutive semicircle is half the radius of the preceding semi circle. What is the sum of the arc lengths of all the semicircular portions?
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| DDD Find the perimeter of the shaded portion in the figure, given OA(r) = 8. [Take π = 3.] DDD |
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DDD Find the length of the arc l from the figure. [Given r1 = 5, r2 = 9, s1 = 6.]
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DDD The circumference of a circle is 35 ft. what is the radius of the circle?
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| DDD In the diagram the ratio of the length of Arc AB to length of Arc CD is 4 : 3. What is the ratio of m to n? DDD |
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| DDD Find the circumference of the circle. [Given x = 45, r = 30.] DDD |
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DDD Length of the arc AB is given as 6π cm and the measure of arc AB is 15. Find the circumference of the circle.
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| DDD Find the value of x from the figure. [Given a = 4, b = 3 and m = 45.] DDD |
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| DDD A boy is playing with a ring of diameter 100 cm. It rolled down from his hands and made 18 revolutions while moving in a straight line and then came to stop. The boy normally covers a distance of 0.4 m in one step. How many steps he has to move to collect the ring? [Take π = 3.] DDD |
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| DDD Find the circumference of the circle. [Given x = 36, r = 36.] DDD |
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DDD Length of the arc AB is given as 9π cm and the measure of arc AB is 60. Find the circumference of the circle.
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| DDD The numerical value of the circumference of a circle is more than the numerical value of its area. What can be the best description of the radius of the circle? DDD |
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| DDD In fig the three circles are of same radius. Find the area of the shaded region. [Given r = 5 in..] DDD |
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DDD The circumference of a circle is 20 ft. what is the radius of the circle?
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| DDD The circumference of a circle is equal to its area in numerical value. Find the circumference of the circle. DDD |
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| DDD In the diagram the ratio of the length of Arc AB to length of Arc CD is 5 : 4. What is the ratio of m to n? DDD |
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| DDD Find the circumference of the circle. [Given x = 30, r = 60.] DDD |
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| DDD In fig the three circles are of same radius. Find the area of the shaded region. [Given r = 7 in..] DDD |
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| DDD The circumference of a circle is _______ times the diameter. DDD |
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| DDD Find the circumference of the circle whose radius is 4.9 cm. DDD |
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| DDD The circumference of a circle is 18π cm. Find its radius. DDD |
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| DDD A motor cycle wheel is designed with the rim diameter of 16 inches and tyre radius of 8.3 inches. Find the allowance for the air gap between the rim and the tyre. DDD |
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DDD The diameter of a cart wheel is 5.3 m. How much distance will it cover if it makes 30 revolutions?
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| DDD The radius of a bicycle wheel is 50 cm. How many revolutions does the wheel make when the bicycle travels 270 m? [Take π = 3.] DDD |
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| DDD Circumference of a circle is given as 38π m. Find the radius of the circle. fff |
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| fff The circumference of a circle is 80π cm. Find the length of an arc whose measure is 36o. fff |
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fff Find the length of the arc of a semicircle whose radius is 4 cm.
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| fff If the diameter of the circle shown is 12 in., then find the length of arc MN. fff |
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| fff The length of an arc is 2π cm and its measure is 90o. Find the radius of the circle. fff |
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| fff Find the perimeter of the shaded portion in the figure, given OA(r) = 12. [Take π = 3.] fff |
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| fff Find the length of arc RP from figure. [Given: (x1, y1) = (1, 5) and (x2, y2) = (1, 9).] fff |
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fff If m∠θ = 10 and AB = 2 units, then find the length of arc BX.
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fff Find the length of the arc l from the figure. [Given r1 = 6, r2 = 9, s1 = 6.]
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fff Three cyclists P, Q and R with the same speed starts from A to reach E as shown in the figure. P will follow the circular route AB-BC-CD-DE; Q will follow the route AC-CE and R will follow the route AE. Who will reach point E first? [Take a = 6.]
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fff Find the perimeter of the figure.
[Take α = 77o, β = 159o, a = 6 cm, b = 5 cm.] fff |
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| fff Find the value of x from the figure. [Given a = 6, b = 5 and m = 30.] fff |
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fff Two skaters are ready to skate on a cicular skating platform. Skater A is at a distance of 2 m from the center and skater B is at a distance of 4 m from the center. After 6 revolutions of their skating, how much distance would have B traveled more than A? Give answer in terms of π.
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| fff Arrange the arcs in the figure in the ascending order of its lengths. fff |
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fff Two skaters are ready to skate on a cicular skating platform. Skater A is at a distance of 3 m from the center and skater B is at a distance of 6 m from the center. After 10 revolutions of their skating, how much distance would have B traveled more than A? Give answer in terms of π.
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| fff Find the circumference of a circle in which a right triangle of base (b) 13.5 cm and height (h) 18 cm is inscribed. [Take π = 3.] fff |
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| fff Find the perimeter of the figure if a = 2.50 cm, b = 8 cm, c = 7 cm. fff |
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fff Select the correct statement / statements.
I. When a square is inscribed in a circle, the perimeter of the square is always less than the perimeter of the circle.
II. When a circle is inscribed in a square, the perimeter of the circle will be less than the perimeter of the square if the radius of the circle is greater than 2.
III. When a circle is inscribed in a square, the perimeter of the circle will be always less than the perimeter of the square. fff |
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fff Semi circles are drawn on a line of length 8 m as shown. The first semicircle has a radius of 18 cm. Radius of each consecutive semicircle is half the radius of the preceding semi circle. What is the sum of the arc lengths of all the semicircular portions?
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fff Find the perimeter of the figure.
[Take α = 84o, β = 159o, a = 6 cm, b = 5 cm.] fff |
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| fff Find the perimeter of the figure. [Take a = 4 cm, b = 6 cm, π = 3.] fff |
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fff Length of the arc AB is given as 9π cm and the measure of arc AB is 45. Find the circumference of the circle.
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fff Ebin bakes a christmas cake in a 30 cm diameter tin. He has a 100 cm length of decorative band to go around the outer line of the cake. Is this band long enough? [Take π = 3.]
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