## anonymous one year ago Given the regular polygon, what is the measure of each numbered angle?

1. anonymous

2. anonymous

3. anonymous

Is that correct?

4. anonymous

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?

5. anonymous

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

6. anonymous

So yes, you're correct. :)

7. phi

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

8. anonymous

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