Anyone knows the answer???

Question

asked May 7, 2022 198k views

2 Answers

Kavindu Nilshan · Answer 1 · 2022-05-11T19:31:14+0000

Answer:

351.9 m²

Explanation:

$SA=2\pi r^2+2\pi rh$ where r is the radius of the base and h is the height of the cylinder

We're given the diameter of the base, which is 8 m. Therefore, the radius is 4 m (after dividing by 2).

Plug in 4 as r and 10 as h

$SA=2\pi (4)^2+2\pi (4)(10)\\SA=2\pi (16)+2\pi (40)\\SA=32\pi +80\pi \\SA=112\pi$

Therefore, the surface area of the cylinder is approximately 351.9 m² after rounding to the nearest tenth.

I hope this helps!