Question

Use the diagram of a cylinder with 8 in. height and 8 in. radius to answer questions 3 and 4. use 3.14 for pi and round to the nearest tenth.

question 3: find the surface area of the cylinder.
a.2009.6 in. squared.
b. 401.9 in. squared.
c. 803.8 in. squared.
d. 602.9 in. squared.

question 4: find the volume of the cylinder
a.1607.7 in. cubed
b. 2,845.7 in. cubed
c. 6,430.7 in. cubed
d. 401.9 in. cubed
please help me... i need answers fast. i will give a medal to the person who answers to of these questions and i will become that persons fan. thanks

Answer 1

@tkoralplusyb u have to post this in the math section
http://openstudy.com/study#/groups/Mathematics

Answer 2

surface area of a cylinder is 2 π r^2 + 2 π r h
2 π r^2 + 2 π r h
2*3.14*64+2*3.14*8*8
803.8 in. squared.

surface area of a cylinder is π r^2 h
π r^2 h
3.14*64*8
1607.7 in. cubed

Answer 3

sorry i forgot that i have to go to the math section to do this...and thanks for the help Nurali.

Answer 4

My Pleasure.