Question

Find the surface area of a cylinder with the following dimensions. Use 3.14 for . Round to the nearest whole number. r = 6 cm, h = 5 cm

a. 517 sq. cm
b. 414 sq. cm
c. 736 sq. cm
d. 298 sq.cm

Answer 1

b. 414 sq cm

Explanation:

The formula for the surface area adds the area of the two circular ends to the lateral area.

... S = 2πr² +2πrh

... = 2πr(r +h)

For r=6 cm, h = 5 cm, the area is ...

... S ≈ 2×3.14×(6 cm)(6 cm+5 cm)

... = 3.14×132 cm²

... ≈ 414 cm²