Question

Please help me with questions 8 and 10. it would literally save my life :)

Answer 1

Answer:

Step-by-step explanation:

8)

around the tank = 12 * circumference

circumference = d$\pi$

c = 30$\pi$

c = 94.2477796

area around tank = 12 * 94.2477796 = 1130.973355

now top of tank

area of a circle = $\pi$$r^{2}$

$\pi$*$15^{2}$ = 706.858347

add the two surface areas together for the total

706.858347 +  1130.973355 = 1837.832

total surface area = 1837.8 $ft^{2}$

10) all I see in the picture is a cylinder, but it's saying "composite" shape so I know there is probably more, but the cylinder is

$\pi$*$3^{2}$* 10 = 282.7 $ft^{2}$