Question

The formula for the surface area of a cylinder is A=2pr(r+h).Find h if A=80p and r=5.
a. 1
b. 3
c. 5
d. 6

Answer 1

80p = 2pr (r+h)
80p/(2p*5)= (5+h)
8=5+h
h=3

Answer 2

Thanks!!

Answer 3

welcome =)

Answer 4

√96
^
√32 * √3
^
√8 √4
^ ^
√2 * √2
√4 * √2
^
√2 * √2

Answer 5

wrong question sorries