If the measure of the interior angle of a regular polygon is 90° greater than the measure of its exterior angle, then how many sides does it have?

If the measure of the interior angle of a regular polygon is 90° grea

1.	If the measure of the interior angle of a regular polygon is 90° greater than the measure of its exterior angle, then how many sides does it have?
A.	8
B.	9
C.	10
D.	12
Answer» B. 9

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If the measure of the interior angle of a regular polygon is 90° greater than the measure of its exterior angle, then how many sides does it have?

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