Question

Given the regular polygon, what is the measure of each numbered angle?

Answer 1

My answer: 36 degrees

Answer 2

Is that correct?

Answer 3

2.) The area of a regular octagon is 35 cm². What is the area of a regular octagon with sides three times as long?

My answer: 315 cm². Is that correct?

Answer 4

\[\frac{ 360 }{ n }~\rightarrow~n=number~of~sides \rightarrow \frac{ 360 }{ 10 }=36 º\]

Answer 5

So yes, you're correct. :)

Answer 6

they also want to know about angle 2.
you have an isosceles triangle so you can figure it out.

Answer 7

Oh right. So for the measure of the 2nd angle, you need to use this.\[\huge m∠2=\frac{ 180-m∠1 }{ 2 }\]