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| fff The coordinates of the point A and B are (0, 0) and (a, b). Find the radius of the circle with AB as diameter. [a = 84 units and b = 35 units.] fff |
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fff Write the standard equation of the circle with center (12, - 9) and radius 13.
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fff Find the coordinates of the center of the circle whose equation is (x - 13)² + (y + 12)² = 256.
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fff What is the center of the circle whose equation is x² + y² - 2x - 4y - 2 = 0?
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fff What is the radius of the circle whose equation is x² + y² - 8x + 6y = 11?
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fff What is the equation of the circle with center (7, - 5) and passing through (2, - 2)?
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fff Does the point (7, 4) lie on the circle (x - 3)2 + (y + 6)2 = 116?
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fff Does the point (3, 0) lie on the circle (x + 4)² + (y - 1)² = 25?
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fff Does the point (3, 9) lie on the circle (x - 1)2 + (y + 10)2 = 365?
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fff Which of the following represents the equation of a circle?
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fff Find the coordinates of the center of the circle whose equation is (x - 5)² + (y + 6)² = 100.
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fff How many circles can be drawn through 3 non collinear points?
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| fff What does the equation x² + y² - 2x + 4y + 1 = 0 represent? fff |
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fff What is the center of the circle whose equation is x² + y² - 6x - 8y - 6 = 0?
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| fff What is the standard form of an equation of a circle with center (h, k) and radius r ? fff |
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fff Write the standard equation of the circle with center (8, - 5) and radius 9.
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fff Which of the follwoing is in the standard form of equation of a circle with center at the origin and radius r?
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fff What is the radius of the circle whose equation is x² + y² - 8x + 8y = -28?
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fff What is the equation of the circle with center (8, - 6) and passing through (3, - 3)?
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fff Where does the point (4, 5) lie with respect to the circle x² + y² = 9?
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| fff The diameter of a circle has end points (- 3, 7) and (5, 5). Write the equation of the circle. fff |
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| fff Find the coordinates of the center of the circle shown with A (a, b) and B (c, d) as the endpoints of its diameter. [Given (a, b) = (1,9) and (c, d) = (3,7).] fff |
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| fff Find the coordinates of the center of the circle shown with A (a, b) and B (c, d) as the endpoints of its diameter. [Given (a, b) = (1,8) and (c, d) = (3,6).] fff |
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| fff Sketch the equation (x - 1)² + (y - 3)² = 4 fff |
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| fff Find an equation of the locus of the centres of the circles passing through (11, 0) and tangent to the line x + 8 = 0 fff |
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fff Which of the following is not the equation of a circle?
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