Question

Find the surface area of the cylinder to the nearest tenth of a square unit.



206 cm2
623 cm2
100.5 cm2
412 cm2

Answer 1

100.48 but if u round it its 100.5 cm2

Answer 2

Thank you so much

Answer 3

\[SA=2 \pi rh+2 \pi r^2=2 \pi r(h+r)\]Where r = radius and h = height.

Here our r = 4 and h = 12.4. Simply plug in these values in to the equation to find the surface area:\[SA=2 \pi (4)(12.4 + 4)=8 \pi (16.4)=131.2 \pi \approx 411.968\] Rounding it off gives 412 cm^2. Therefore, the surface area of the cylinder is 412 cm^2.

@e.cociuba You are wrong.
@SomeGirl1999

Answer 4

oh thank you

Answer 5

ohh opps sorry! I mite have done a mistake along the way! My appologies :)

Answer 6

you are forgiven haha

Answer 7

lol :)