Question

Find the value of x.

Answer 1

Answer:

$x + 1 + x + 3 = 180$

by vertically opposite angle theorem

$x + x + 1 + 3 = 180$

$2x + 4 = 180$

$2x = 180 - 4 = 176$

$x = \frac{176}{2}$

$x = 88$

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