Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 Re: Help Me ! » Areas of Polygons » 2019-04-27 10:41:42

Area of octagon

360/8=45

2*S.A.+45=180

2*S.A.=135

S.A.=67.5

tan(67.5)=opp/2.5

Opp=tan(67.5)*2.5

Opp=6.03

Area=6.03*5/2

#2 Re: Help Me ! » Areas of Polygons » 2019-04-23 10:20:14

No, I am not sure I can find it.

#3 Re: Help Me ! » Areas of Polygons » 2019-04-22 10:28:38

Okay, so how would I be able to find AH and AC?

#4 Re: Help Me ! » Areas of Polygons » 2019-04-21 12:54:34

4. A regular hexagon rests on one of the flat sides and has a total height of 14 ft. What is the measure of one of the hexagon’s sides?
I drew a hexagon into 6 triangles. I used the middle bottom triangles. The height is 14.
Height for the triangle: 14/2=7
360/6=60
2*S.A+60=180
2*S.A.=120
S.A.=60
tan(60)=7/adj
adj=7/tan(60)
adj=4.04
S=4.04*2
S=8.08ft

#5 Re: Help Me ! » Areas of Polygons » 2019-04-19 10:18:30

I have already solved question 2. I need help with the 4th and 5th questions now.
I got this for question 4.

4. A regular hexagon rests on one of the flat sides and has a total height of 14 ft. What is the measure of one of the hexagon’s sides?

I drew a hexagon into 6 triangles. I used the middle bottom triangles. The height is 14.

Height for the triangle: 14/2=7

360/6=60

2*S.A+60=180

2*S.A.=120

S.A.=60

tan(60)=7/adj

adj=tan(60)*7

adj=12.12

S=12.12*2

S=24.24ft

#6 Re: Help Me ! » Areas of Polygons » 2019-04-12 05:40:26

I did not use a formula. I divided them up into triangles and there was a group of steps. I can find the answer if I have to find the area but it is harder when I have to find a side.

#7 Re: Help Me ! » Areas of Polygons » 2019-04-09 04:01:14

I have looked but I can't seem to make sense of them. I have been on those three questions for a little over a month. At this point, I am completely and utterly stuck.
P.S. I don't know how to upload the picture. It's the same as the users before me posted.

#8 Help Me ! » Areas of Polygons » 2019-04-08 12:08:07

dAnta
Replies: 17

Hello, I need some help on these following questions.

2. If a heptagon has an area of 130 in2, what is the measure of one side?

4. A regular hexagon rests on one of the flat sides and has a total height of 14ft. What is the measure of one of the hexagon’s sides?

5. Problem solver (worth 6 points):  Find the surface area and volume of the pool shown below when the sides, the twelve "bumpers" making up the perimeter of the pool, are 5 ft each and the depth of the pool is 6 ft.

Board footer

Powered by FluxBB