Attempt following question by selecting a choice to answer.
e
ΔABC is an isosceles triangle and
∠A = 30°. Which of the following cannot be the measures of other two angles?
c eA.
e40°, 120°
B.
e75°, 75°
C.
e30°, 120°
D.
eNone of the above
e
A
Step 1: In an isosceles triangle, two angles are equal.
Step 2: A triangle with angle measures 30°, 30°, 120° and 30°, 75°, 75° forms an isosceles triangle.
Step 3: Among the choices, a triangle with angle measures 30°, 40°, and 120° cannot form an isosceles triangle.