Question

PLZ HELP ASAP! I WILL GIVE BRAINLIEST!

Find the surface area for the given cylinder. Use 3.14 for π and round to the nearest whole number.


A) 180 ft squared

B)720 ft squared

C) 433 ft squared

D) 135 ft squared

Answer 1

Option C:

Surface area of the given cylinder = 433 ft²

Solution:

Diameter of the base = 6 ft

Radius of the base = 6 ÷ 2 = 3 ft

Height of the cylinder = 20 ft

To find the surface area of the cylinder:

Surface area of the cylinder = $2 \pi r^{2}+2 \pi r h$

                                               $=2 \times3.14\times3^2+2\times3.14 \times3 \times20$

                                               $=56.52+376.8$

                                               $=433.32$

                                               = 433 ft²

Surface area of the given cylinder = 433 ft²

Hence Option C is the correct answer.