Find the surface area of a cylinder to the nearest tenth of a square unit use 3.14 for pi radius is 4.9ft h is 7.8ft 38.2 65.4 286.2 390.8

Question

asked Dec 25, 2021 216k views

1 Answer

JustNeph · Answer 1 · 2021-12-30T18:33:11+0000

Solution:

The surface area of cylinder is given as:

$A=2 \pi rh+2 \pi r^2$

Where, r is the radius and h is the height

From given,

r = 4.9 feet

h = 7.8 feet

Substituting the values we get,

$A = 2 * 3.14 * 4.9 * 7.8 + 2 * 3.14 * 4.9^2\\\\A = 240.0216+150.7828\\\\A = 390.8044 \approx 390.8$

Thus the surface area of a cylinder to the nearest tenth is 390.8 square feet