What is the length of one side of a regular octagon if its perimeter is 72cm

no answers

@awillie98,@iihoop3 and others - will medal a maybe fan

Question

What is the length of one side of a regular octagon if its perimeter is 72cm 

no answers 

@awillie98,@iihoop3 and others - will medal a maybe fan

anonymous · Answer

Im not eve sure how to do this

anonymous · Answer

lol its ok girl! no worries @TheSmartOne

mathstudent55 · Answer

How many sides does an octagon have?

anonymous · Answer

8 of course

anonymous · Answer

9

anonymous · Answer

is the answer

mathstudent55 · Answer

Great.
What does "regular" mean in "regular octagon"?

anonymous · Answer

9*8 sides of the octagon is 72

anonymous · Answer

a regular octagon is just the regular kind ..wait I thought a octagon had 5 sides? sorry im just so tired

anonymous · Answer

lmao no it has 8 sides

anonymous · Answer

What is the measure of BAC ? 

A.28

B.83

C.55

D.93

sorry I just tired ...I wa thinking C

mathstudent55 · Answer

No. You were correct the first time.
An octagon has 8 sides.

A regular polygon means that all sides are congruent, and all angles are congruent.

Since it has 8 sides of the same length, and the perimeter is 72 cm, then you can divide (72 cm)/8 = 9 cm, so you get that each side is 9 cm long.
If you were not told it is a regular octagon, you wouldn't be able to answer the question because the sides would have different lengths.

mathstudent55 · Answer

What do you know about the sum of the measures of the angles of a triangle?

mathstudent55 · Answer

|dw:1435685165487:dw|

anonymous · Answer

@mathstudent55 can you help me out also

anonymous · Answer

can u tll me the answer I have a time limit and I don't want to get in trouble

mathstudent55 · Answer

The sum of the measures of the angles of a triangle is 180 degrees.
All three angles must add to 180.
You were given the measures of two angles.
Add them up. Then subtract the sum from 180, and that is the measure of the third angle.

mathstudent55 · Answer

We'll do it quickly.
What is 62 + 35 = ?

anonymous · Answer

97

mathstudent55 · Answer

Great.
62 + 35 = 97
Now subtract the sum 97, from 180.
What is 180 - 97 = ?

anonymous · Answer

83

mathstudent55 · Answer

Correct.
To double check, just add:
Is 62 + 35 + 83 = 180?
Yes, it is, so 83 is correct.

mathstudent55 · Answer

Ok, gtg. I'll be back in a few hours.

anonymous · Answer

ok thx so much!

mathstudent55 · Answer

You're welcome.
If you see me on OS again and have any questions on math, just tag me or message me,.

mathstudent55 · Answer

Bye.

anonymous · Answer

ok bye