Question

Which set of measurement could be the interior angle measures of triangle.A. 10°, 10°, 160°B. 15°, 75°, 90°C. 20°, 80°, 100°D. 35°, 35°, 105°E. 60°, 60°,60°

Answer 1

The sum of the interior angles of a triangle must add 180°.

C : 20 + 80 + 100 = 200 NO

D : 35+35+105 = 175 NO

A : 10+ 10+160 = 180 Yes

B : 15 +75 + 90 = 180 Yes

E :60+60+60 = 180 Yes