Given:
Sum of interior angle
To find:
Number of sides of a polygon
Solution:
Using sum of interior angles formula:

where "S" is the sum of interior angels and "n" is the number of sides of a polygon.
Divide by 180° on both sides.

Cancel common factor 180°.

Add 2 on both sides.


Switch the sides.

Therefore number of sides of a polygon is
.
0.825200
(correct me if I’m wrong)
When the radius is doubled, the volume of a cylinder quadruple
Answer:


Step-by-step explanation:


hope this helps
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