Question

How many sides does a regular polygon have if each of its interior angles is
1440?​

Answer 1

Answer:

Step-by-step explanation:

The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440. We found this by using the formula (n-2)(180).

Answer 2

Answer:

10 sides.

Step-by-step explanation:

Let the number of sides be n. According to the Question,

(n - 2)180° = 1440°

n - 2 = 1440° / 180°

n - 2 = 8.

n = 10.

So the polygon has 10 sides. Or it is a decagon.

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