Question

a regular pentagon has a perimeter of 40 cm. find its each side and also the measure of its each interior angle​

Answer 1

Answer:

each side will be 40/5=8.

The sum of all of the interior angles can be found using the formula S = (n - 2)*180

=(5-2) *180

=3*180

=540

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Answer 2

Given - Perimeter

Find - Side and each interior angle

Solution - The side is 8 cm and each interior angle is 108°.

Side of pentagon = perimeter/5

Side = 40/5

Side = 8 cm

Interior angle = (n-2)*180/n

Interior angle = (5-2)*180/5

Interior angle = 3*180/5

Interior angle = 3*36

Interior angle = 108°

So, side is 8 cm and each interior angle is 108°.