Use the net to find the approximate surface area of the cylinder to the nearest square meter.

A: 440 m^2
B: 314 m^2
C: 283 m^2
D: 214 m^2

@hartnn
@ParthKohli
@Compassionate

Image Below

Question

Use the net to find the approximate surface area of the cylinder to the nearest square meter.

A: 440 m^2
B: 314 m^2
C: 283 m^2
D: 214 m^2

@hartnn
@ParthKohli
@Compassionate

Image Below

anonymous · Answer

attachment

hartnn · Answer

The two circular bases will have the area of $\Large 2 \times \pi r^2 $

and the curved surface has one side as height h =9 and other as circumference of the base circle 2$\pi$2, so its area will be 
$\Large 2\pi rh$

Calculate those 2 areas and just add!

anonymous · Answer

ok, thats a little confusing. so i do 2x3.14x5^2?

hartnn · Answer

yes, thats for base area,

calculate that.

Then also get $2 \times 3.14 \times 5 \times 9$

anonymous · Answer

and then add them together?

hartnn · Answer

yusss

anonymous · Answer

i got 439.6
would i round to 440 meaning A?

hartnn · Answer

yes! :)