Here's the question...
Draw an octagon that has a perimeter of 30in, label the sides.
My question is, do the sides all have to be equal and how could they be if 8 does not go into 30 equally?
2006-08-31 13:13:48 · 9 answers · asked by beck 2 in Education & Reference ➔ Homework Help
Thank you for all your answers! I had the same answer in mind but I wanted to make sure I was right before I explained this to my daughter.
2006-08-31 13:59:31 · update #1
you divide the 30 inches by equal 8 sides.
So the perimeter is shared by all the sides equally.
So 30/8 = 3.75in
2006-08-31 13:19:47 · answer #1 · answered by anon1mous 3 · 0⤊ 0⤋
they DO NOT have to be equal. u could put 8 lines together of all different lengths and they'd be considered an octagon. but in this case, to make it easier jus draw it evenly. and 8 does not go into 30 evenly because 30 isnt a multiple of 8. draw the shape of a stop sign and then label each side 3.75in. jus because a side isnt an even number doesnt mean that the lines arent all even. hope u understand!!
2006-08-31 13:22:29 · answer #2 · answered by Procrastination Kills. 3 · 0⤊ 0⤋
The way the sentence is stated, I don't think the sides all have to be equal. The most important thing to do is to label everything appropriately. I will add that by making the sides all equal, than all of the angles will be all equal and that will make your life a whole lot easier.
So if you do decide to make them all equal in length, you could make each side 30/8 = 3.75 in in length for each side. Although it is not a whole number it is a number.
2006-08-31 13:24:03 · answer #3 · answered by gtn 3 · 0⤊ 0⤋
I think an octagon is any 8-sided figure, and it does not necessarily have to be regular (meaning all sides are equal). But if it is regular, couldn't each side be 30/8 inches, or 3 and 3/4 inches?
2006-08-31 13:20:48 · answer #4 · answered by Carlos R 5 · 0⤊ 0⤋
I'm not so sure that they have to be equal, but maybe they do.
If they do, just make 8 equal sides of 8/30 or 4/15.
It's not like it;s an irrational number or anything.
2006-08-31 13:19:05 · answer #5 · answered by dopplerjeff5000 2 · 0⤊ 0⤋
each side has to be equal and they should each be 3 3/4 inches long. To figure this out, you need to divide 30 by 8. Good Luck
2006-08-31 13:30:27 · answer #6 · answered by Dolly V 2 · 0⤊ 0⤋
If the question just says "octogon", then the sides do not have to be equal. There just have to be eight of them. If the question says "regular octogon", then the sides do have to be equal.
Note that this depends on how well your teacher knows geometry. If he isn't aware that only a regular octogon has equal sides, he may be expecting one. You'll have to decide from what you've been told in class if this is the case.
2006-08-31 13:21:44 · answer #7 · answered by Anonymous · 0⤊ 0⤋
No. The sides do not have to be equal. An octagon is not the shape you think it is. because it is many shapes. an octagon is just really an eight-sided figure. it can be many different shapes as long as it has eight sides.
2006-08-31 13:20:30 · answer #8 · answered by Tokyo_rocks 2 · 0⤊ 0⤋
No. Your logic is right. It never said draw a perfect or regular octagon.
Besides that, ask the teacher just in case.
2006-08-31 13:20:57 · answer #9 · answered by Anonymous. 2 · 0⤊ 0⤋