Question

find the surface area of the space figure. 28 ft by 36 ft.

Answer 1

its a cylinder if that helps

Answer 2

plz help!

Answer 3

Surface Area = Areas of top and bottom +Area of the side

Surface Area = 2(Area of top) + (perimeter of top)* height

Surface Area = 2(pi r 2) + (2 pi r)* h

Answer 4

a cylinder is made up of 3 parts: 2 circles are each end, and a rectangle wrapped around the circles for the main part

Answer 5

it is a 3dimenton figer

Answer 6

Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h

Answer 7

ok, but why is that the case? because there are 2 circles (for the 2 * pi*r^2), then a rectangle which constitutes the middle, the rectangle has height=h, and the width of the rectangle equals the circumference of the circle, which is 2*pi*r

Answer 8

so the area of the two circles is: 2* (pi*r^2)
area of the rectangle is: h * width, where width = 2*pi*r, so -> h*(2*pi*r)

Answer 9

(h is the height of the cylinder, r is the radius of the top)

Answer 10

so as glenn pointed out: Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h

Answer 11

which is area of both circles plus the area of the rectangle

Answer 12

yes

Answer 13

hold on wrong chat

Answer 14

that i am get ing i have not did this in a long time

Answer 15

Surface Area = 2(pi r 2) + (2 pi r)* h

Answer 16

yes..

Answer 17

ok?

Answer 18

sorry was gone

Answer 19

dk?

Answer 20

help?

Answer 21

yes with what

Answer 22

???

Answer 23

same question

Answer 24

Surface Area = 2(pi r 2) + (2 pi r)* h