Question

Please look at the image

Answer 1

Explanation:

m∠A = 70°

m∠B = 30°

m∠C = 80°

Sum of all three angles = 70° + 30° + 80° = 180°

Hope it helps....!

Answer 2

m/_A= 120°
m/_B=30°
m/_C= 100°

sum of all the angles=120+30+100 = 250°