- A80°
- B50°
- C100°
- D65°
Step-by-Step Solution
Isosceles: AB = AC means angle B = angle C = 50°. So angle A = 180 - 50 - 50 = 80°.
Answer: A) 80°
In triangle ABC, AB = AC and angle B = 50°. Then angle A equals:
Class 9Inequalities in a TriangleGeometry — Triangles
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