The measure of angle A would be 80° since the sum of angles in a triangle is 180°. Therefore, angle A + angle B + angle C = 180°. Given that angle B measures 100°, we can calculate angle A by subtracting 100° from 180° and then subtracting 180° from the result to get:
180° - 100° = 80°
Therefore, angle A measures 80°.
What is the measure of ∠A given that ∠B measures 100°?
1 answer