Question

*I'll give medals and fan*

. To go with your new themed border, you decide to also order some hip fabric to re-cover your sofa and cylindrical chair. However, the company will only give you 50 square feet of fabric, so you can't re-cover both of them. Show your work to determine which piece you can cover. Use 3.14 for n. *I chose the cylindrical chair which is below*

Answer 1

we need the specs on the chair and the couch.

Answer 2

Your suppose to only choose only one or the other. I chose the chair which is right here:



Your are to tell me the formula for surface area. :)

Answer 3

And how to solve this correctly.. :)

Answer 4

you do not get to choose, it says figure out which one you can cover.

Answer 5

oh ok but we also need to see the couch data

Answer 6

yes

Answer 7

and you cant pick the chair either, we need the one they gave you.

Answer 8

if they did not give you specs on the chair and couch, you cant answer this question

Answer 9

Fine.. hold on.

Answer 10

k

Answer 11

dont fine.. me, if you want to do it wrong we can.

Answer 12

lol

Answer 13

Aha, and here we go THE COUCH =D

Answer 14

so you need the equations for surface area, of a pyramid, box, and a cylinder

Answer 15

I need the formula's for surface area on a cylinder..

Answer 16

ok you are given two shapes, you have enough to cover only one. They want you to figure out the surface area of both shapes and then determine which one you can cover with the minimal amount of fabric you have. Are you assuming its the cylinder or have you done the math and know such?

Answer 17

i have down the math and i feels less smart then before lol because i got lost

Answer 18

I'm not at all at knowing, such. I thought the question was asking me which one I preferred and then solve.

@firehead11111 Your not helping, please leave. Or help.

Answer 19

@iAmCool i am doing it so wait

Answer 20

Well, not to be a pity, but this a timed test. -_-

Answer 21

i have a timed test in my other tab and i am still trying to help you so give me a minute

Answer 22

so do you have the equations i talked about?

Answer 23

Do I have the what? I just need to know the forumula for finding surface area on a cylinder, and a cube and rectangular prism?

Answer 24

yep, the couch is made up of a box, and a pyramid...

Answer 25

Yes, I know! So can you tell me how to find the surface area? o_O

Answer 26

so for the rectangle
the area is (2*(2*6))+(2*3*2)+(6*3*2)
and the area of the pyramid is
2b+2p where b is the area of the base and p is the parameter.
so 2(9)+2*2*1.25
add all that up and what do you get?
(2*(2*6))+(2*3*2)+(6*3*2) + 2(9)+2*2*1.25

Answer 27

surface area for cylinder

2 π r^2 + 2 π r h

can you do this?

Answer 28

It equals 95..

Answer 29

Yes.

Answer 30

That on my calculator gives me 157/5?

Answer 31

and you need the surface area for the tube thing on top

cylinder part
2 π r^2 + 2 π r h
2 * 3.14*(2.5/2)^2 + 2*3.14*(2.5/2)*3 = 33.36 now add that to the surface area of the tube 2 π r^2 + 2 π r h
so 2*pi*(1/2)^2 + 2*pi+(1/2)+4 = 12.35
now add them 33.36+12.35 = ?

Answer 32

@iAmCool ?

Answer 33

My calculator gives me 4571/100?