Question

A

506.25 square meters

b

777.54 square meters

c

424.11 square meters

d

1215 square meters

Answer 1

b. 777.54 square meters

Explanation:

• Total surface area of cylinder = 2 π r(r+ h)

Given:

• d = 15 m ⇒ r = 15 m/2 = 7.5 m
• h = 9 m

Area:

• 2 π r(r+ h) = 2π*7.5*(7.5 + 9) ≈ 777.54 m²

Correct answer choice is b. 777.54 square meters