Question

For quadrilateral ABCD, what is the value of y

- 26 degrees
- 48 degrees
- 20 degrees
- 34 degrees

Answer 1

A) 26°

Explanation:

In quad ABCD

C = 90°

B = 2y

A = 180 - 68

D= 180 - (y+48)

In a quad sum of all angles = 360°

therefore,

A + B + C + D = 360°

90 + 2y + 360 - 68 - y - 48 = 360

90-116+y = 0

y = 26°