Question

A polygon with all angles equal has 20 sides
a: what will be the measure of one it's outer angle?
b: what will be the measure of one it's inner angle?



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Answer 1

Question:

A polygon with all angles equal has 20 sides.

a: what will be the measure of one it's outer angle?

b: what will be the measure of one it's inner angle?

Solution:

[b] Measure of interior angle= {(n-2)×180°}÷ n

= {(20-2)×180}/20

=162°

[a] Measure of outer angle= 180°- interior angle

=180°-162°

= 18°

Answer 2

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