Question

In triangle ABC, m∠A = 75° and m∠B = 20°. What is m∠C?

A) 55°
B) 85°
C) 95°
D) 265°

Answer 1

By subtracting the sum of angles A and B from 180°, we find that the measure of angle C in triangle ABC is 85°.

Step-by-step explanation:

To find the measure of angle C in triangle ABC, we can use the fact that the sum of the angles in any triangle is 180°. Given that m∠A = 75° and m∠B = 20°, we can calculate m∠C as follows:

180° - m∠A - m∠B = m∠C

180° - 75° - 20° = m∠C

180° - 95° = 85°

Therefore, the measure of angle C is 85°, which corresponds to option B.