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
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°