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3 years ago

What is the value of x

Mathematics

1 answer:

Allisa [31]3 years ago

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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To identify the answer in each case, you must remember that all the parts are equal, then:

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