Question

A)
be
85°
120°
(2x - 10°
X​

Answer 1

Let's see what to do buddy...

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Step (1)

We know that the sum of the interior angles of any n-sided figure is obtained from the following equation :

`(n - 2) * 180`

Our figure has 5 sides ;

So , sume the interior angles of it equals :

`(5 - 2) * 180 = 3 * 180 = 540 \\`

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Step (2)

First look at the photo which I post.

According it we have :

`(180 - x) + 120 + 85 + (2x - 10) + 90 = 540 \\`

`2x - x + 475 - 10 = 540`

`x + 465 = 540`

Subtract the sides of the equation minus 465 :

`x = 540 - 465`

`x = 75`

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And we're done.

Thanks for watching buddy good luck.

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