Question

Which set of angle measures could be the interior angles of a triangle?
90º, 90º, 90º
80º, 80º, 200º
40º, 50º, 60º
15º, 30º, 135º

Answer 1

Answer:

d. 15, 30, 135

Step-by-step explanation:

A triangle's interior angles on a flat surface add up to 180 degrees.

a. 90 * 3 = 270 != 180

b.(80 * 2) + 200 = 360 != 180

c.40 + 50 + 60 = 160 != 180

d.15 + 30 + 135 = 45 + 135 = 180, so it has to be d.