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Can someone please help me with number 2

Can someone please help me with number 2-example-1
User SGD
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1 Answer

3 votes
We need to use the formula:

(n-2) x 180 = sum of interior angles

where n is the number of sides.

So,

(n-2) x 180 = 1620
n - 2 = 1620 ÷ 180
n - 2 = 9
n = 9 + 2
n = 11

It has 11 sides!
User Vaclav Pech
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8.9k points

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