Question

find the measures of interior angles of a regular polygon of 9 sides.​

Answer 1

Answer:

To find the value of an internal angle within this polygon, we can just multiply the number of triangles by 180 ° , then divide by the number of internal angles, which is nine. Excellent! So the interior angle of a 9 -sided polygon is 140 ° .

Step-by-step explanation:

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Answer 2

Answer:

Each interior angle of regular polygon of n sides is given by

n

180(n−2)

degree

∴ each interior angle =

9

180(9−2)

degree

=20×7

=140

0

Step-by-step explanation:

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