Question

Two angles of a quadrilateral measure 107° and 115°. The other two angles are in a ratio of 5:18. What are the measures of those two angles?

Answer 1

Interior angle of quadrilateral is 360

Sum of the two known angles 222

The sum of the other two is 360-222=138

Ratio 5:18

A=5/23*138=30

B=18/23*138=108

Explanation: