Question

Which set of angle measures could be the measures of the interior angles of a triangle?

• 90°, 42°, and 58°
60°, 60°, and 60°
LO 100°, 48°, and 42°
31°, 75°, and 70°

Answer 1

The answer is

60°, 60°, and 60°

Answer 2

B

Explanation:

The sum of the 3 interior angles of a triangle = 180°

Check the sums of the given sets of angles

90° + 42° +58° = 190° ≠ 180° ← not valid

60° + 60° + 60° = 180° ← Valid

100° + 48° + 42° = 190° ← not valid

31° + 75° + 70° = 176° ← not valid