Question

Find the value of x

please help!!!

Answer 1

Sum of the interior angles of any n-side shape must equals to :

`(n - 2) * 180`

Thus ;

`(5 - 2) * 180 =`

`3* 180 =`

`540 \: \: degrees`

So :

`x + 122 + 100 + 90 + 144 = 540`

`x +456 = 540`

Subtract both sides 456

`x + 456 - 456 = 540 - 456`

`x = 84`

There u go...

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