Angles in a Triangle

Geometry Level 1

In a triangle, two of the angles measure $34^\circ$ and $78^\circ$ . What is the measure (in degrees) of the third angle?

88 68 78 58

1 solution

Arron Kau Staff
May 13, 2014

Since the angles in a triangle sum to $180^\circ$ , hence the third angle is equal to $180^\circ - 34^\circ - 78^\circ = 68 ^ \circ$ .