Question

In a triangle ABC, m∠A = 124° and
m∠B = 24°. Find the measure of ∠C.

• A. ${62}^o$
• B. ${32}^o$
• C. ${52}^o$
• D. ${22}^o$

Answer 1

The correct option is B ${32}^o$

Angle sum property of triangle:
Sum of the three interior angles of a triangle is 180°.
m∠A + m∠B + m∠C = 180°

Given,
m∠A = 124°
m∠ B = 24°

∴ Sum of these two angle = 124° + 24° = 148°

So, the value of the third angle = 180° – 148° = 32°