Question

Solve for y.




115°

108°

90°

130°

Answer 1

115°

Explanation:

the sum of the interior angles of a pentagon is 540°

135+90+112+88+y=540

y= 540-135-90-112-88

y= 155°

Answer 2

Answer:y=115

Explanation:

find the sum of the angles:

=(n-2)180

=(5-2)180

=540

find the value of y:

y=540-(135+112+88+90)

y=115