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## Sagot :

let the four interior angles be:

A)180-4x-10

B)180-4x+10

C)180-6x

D)180-2x +40

A+B+C+D = 360

180-4x-10+180-4x+10+180-6x+180-2x +40=360

760 - 16x=360

16x = 760-360

16x=400

x=25

Therefore the four exterior angles are

1)4x+10=110

2)4x-10=90

3)6x=150

4) 2x+40=90