Question

Find the surface area for the given cylinder. Use 3.14 for pi and round to the nearest whole number.

Answer 1

@pooja195 can you help me with this one?

Answer 2

do u have answer choices ??

Answer 3

oh yah my bad

Answer 4

180 ft2
720 ft2
433 ft2
135 ft2

Answer 5

Why are you trying to get others to do your homework instead of trying to learn to do it yourself?

Answer 6

im not im asking for help

Answer 7

That is not true because when I tried to help you you wouldn't even respond to my question of how to find the area of a rectangle.

Answer 8

@Mertsj this website is for helping so stop it

Answer 9

actually i did respond to your question and ya pooja is right whats your problem?

Answer 10

ok so your question im thinking the first one

Answer 11

That's right, pooja. For helping. Not doing the work for someone else.

Answer 12

@Mertsj plz go away or im going to have to report u

Answer 13

im going to block u

Answer 14

That actually harms the asker instead of helping them.

Answer 15

ok im getting a mod if u dont leave

Answer 16

I actually think the moderator will agree with me.

Answer 17

then get the moderator im simply asking for help on a question i dont understand

Answer 18

ok im thinking for u its the first one but am not sure do u have any ideas about this

Answer 19

well since its surface area im pretty sure you have to take 3.14 times one of the sides

Answer 20

The cylinder has a top and a bottom. The top and bottom are both circles, with the same diameter.

Area of a circle = pi r^2

So the area of each circle is

diameter = 6 m

r = 3 m

area = pi (3)^2 = 9pi

so the area of each circle is 9pi.

the top and the bottom circle are a combined area of 18pi.

now for the area of the "label" of the cylinder.

Unfolding the cylinder produces a rectangle

the width of the rectangle is circumference of the circle

the height is the height of the label

so lets find the width

width = circumference circle = pi*diameter

width = pi(6) = 6pi

the height of the cylinder "label" is given

height = 20

area of the "label" = 6pi*20 = 120pi

the surface area is the area of all the surfaces added together

top and bottom circle combined = 18pi

+

the label of the cylinder, 120pi

=

138pi

instructions say to use 3.14 for pi

so

138pi

=

138(3.14)

this is your answer

Answer 21

thats right

Answer 22

that answer isnt posible though because its a multiple choice 180 ft2
720 ft2
433 ft2
135 ft2

Answer 23

oh im sorry i read that wrong

Answer 24

Whatever

Answer 25

@stamp you gave out an entire worked out answer .This is not the way we help users here ..try to guide them to the answer...You must have thought of this because A senior user like @Mertsj made a statement about the asker...refer COC http://openstudy.com/code-of-conduct

Answer 26

I LIKE PIE