Two angles in a triangle are 30° and 35°. What type of angle is the other?

Question

Mathematics

Adalynn Costa

25 May, 19:22

Two angles in a triangle are 30° and 35°. What type of angle is the other?

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Answers (2)

Know the Answer?

Danielle Horne · Answer 1

The third angle is obtuse.

Since the shape has 3 sides, then the total measure of degrees is (n-2) 180 = (3-2) 180 = 180°.

So our equation would be

180° = 35° + 30° + x°

x = 115°

115 is greater than 90, so the angle is obtuse.

Cristian Johnston · Answer 2

30° + 35° + x = 180°

65° + x = 180°

x = 115°

The third angle is 115°. Because it is greater than 90° it is an obtuse angle.