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Does anyone know how to do this I’m really confused

Does anyone know how to do this I’m really confused-example-1

1 Answer

4 votes

Given:

  • Pentagon

To find:

The size of the unknown angle "x"

Solution:

The given polygon is a Pentagon so the sum of interior angle will be,


\large\boxed{Formula: ( n − 2 ) × 180}

n means the number of sides

Let's substitute the values according to the formula.


(5-2)×180


=540°

Now, we can find the sum of one interior angle.


\large\boxed{(sum \: of \: interior \: angles)/(n)}

n means the number of sides.

Let's substitute the values according to the formula.


x=(540)/(5)


\large\boxed{x= 108°}

Therefore, the size of the unknown angle "x" is 108°

User Pillravi
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