Question

WILL FAN AND GIVE MEDAL! PLEASE HELP!

If an oil barrel is 4 feet tall with a radius of 2 feet, what is the surface area of one barrel?

A.) 43.61 square feet

B.) 75.36 square feet

C.) 150.72 square feet

D.) 180.34 square feet

My guess? 43.61

Answer 1

surface area = 2pi(r^2) + 2pi(r)(h) where r is the radius and h is the height
r = 2, h = 4

Answer 2

Thank you! That helped so much! I'll use that formula next time! @Vocaloid