4 years ago

What is the value of x

1 answer:

4 0

Sum of interior angles of polygon:
= 180(n - 2)
= 180(5-2)
= 180(3)
= 540

so
2x = 540 - (90+100+70)
2x = 540 - 260
2x = 280
x = 140

answer
x = 140

Hope it helps

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