Celina is buying fabric scraps to make koozies for her glasses. Each glass is cylindrical with a diameter of 4 inches and a height of 8 inches. The koozies will cover only the sides of the glasses. What is the amount of fabric she will use? What does this amount represent? Use three point one four for pi. Show your work.

Question

anonymous · Answer

well' you're finding the total surface area. .

total surafe area= area of the bases (given that a cylinder has 2 bases) + area of the side which is a rectangle. .

anonymous · Answer

two glasses is asked?

anonymous · Answer

it's not found on the given the number of glasses?  how many glasses are to be made?

anonymous · Answer

i am not sure

anonymous · Answer

what does "each" represent on the problem?

anonymous · Answer

both eyepeices

anonymous · Answer

then, there are 2. .

anonymous · Answer

given the h=8 and d=4

we can find surafe area.|dw:1332202731763:dw|

SA= 2(area of the bases +area of the side)
   = 2(area of the circles + area of the rectangle)
   =2 {[ 2(pi d^2)/4] + lw}
    = 2{[2(3.14)(4^2)/4] +(4)(8)}
    =114.24 sq. inches