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12/07/2021 11:44 am
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ABC is a right-angled triangle in which A = 90° and AB = AC. Find B and C.
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12/07/2021 11:45 am
In the question, it is given that
A = 90° and AB = AC
AB = AC
⇒ B = C (They are angles opposite to the equal sides and so, they are equal)
A + B + C = 180° (Since the sum of the interior angles of the triangle)
∴ 90° + 2B = 180°
⇒ 2B = 90°
⇒ B = 45°
B = C = 45°