Question

A quadrilateral has three acute angles, each measures 80°. What is the measure of the fourth angle

Answer 1

Answer:

Measure of the three acute angles = 80°

Sum of all angles of a quadrilateral = 360°

Let the fourth angle be x.

So,

80° + 80° + 80° + x = 360°

x + 240° = 360°

x = 120°

I hope this helps.