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kotegsom [21]
2 years ago
6

Find the value of x.

Mathematics
1 answer:
hichkok12 [17]2 years ago
8 0
<h3>Angles sum up to:</h3><h3>( n - 2 ) × 180 = ( 5 - 2 ) × 180 = 3 × 180 = 540</h3>

x + 4x + 4x + 135 + 135 = 540

9x + 270 = 540

9x = 540 - 270 \\ 9x = 270

x =  \frac{270}{9}  = 30

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