Three angles of a quadrilateral measure 110 degree, 82 degree, and 68 degree. Find the measure of the fourth angle.

Introduction

In this post, you will know the solution of this question: Three angles of a quadrilateral measure 110 degree, 82 degree, and 68 degree. Find the measure of the fourth angle.

Solution: Let the measure of fourth angle be x degree

Then, the sum of the angles of a quadrilateral being 360°, 

we have: 110° + 82° + 68° + x = 360° 

260° + x° = 360°

x = 100°

Hence, the measure of the fourth angle is 100°.