Question

# What is the value of 'a’?

- 4
- 3
- 2
- 6

## The correct answer is: 2

### To find the value of a.

Sum of exterior angles of a polygon is $360_{∘}$

$27a+66a+56a+31a=360$
$180a=360$
$a=2$

The value of a is 2.

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