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ABC is a right-angled triangle in which A = 90° and AB = AC. Find B and C. Q.7

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Sir please help me to solve the ncert class 9th solution of chapter triangles.How I solve this question of exercise 7.2 question number 7. Find the simplest and easiest solution of this question , also give me the best solution of this question.ABC is a right-angled triangle in which A = 90° and AB = AC. Find B and C

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  1. Ncert solutions class 9 chapter 7-15

    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)

    Now,

    A+B+C = 180° (Since the sum of the interior angles of the triangle)

    ∴ 90° + 2B = 180°

    ⇒ 2B = 90°

    ⇒ B = 45°

    So, B = C = 45°

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