Bridget has a kitchen canister, in the shape of a cylinder, which holds flour. If the canister is 24 centimeters wide and 26 centimeters tall, what is its approximate surface area in terms of pi?

624π square centimeters

1,248π square centimeters

912π square centimeters

1,296π square centimeters

Question

Bridget has a kitchen canister, in the shape of a cylinder, which holds flour. If the canister is 24 centimeters wide and 26 centimeters tall, what is its approximate surface area in terms of pi?

 624π square centimeters

 1,248π square centimeters

 912π square centimeters

 1,296π square centimeters

anonymous · Answer

trying to do all your homework here nurse

anonymous · Answer

no this is not homework. and i just need the formula. ill do my work myself

anonymous · Answer

This of it this way, two circles plus a rectangle that wraps around the perimeter of the circles once.  

One complete rotation is 360 degrees, or 2π radians.  

A radian the angle equal to one radius length.

Length = this 2π radians, so 2π radius

Rectangle area: Length * Width

So...  add two circles which is an area of πr$^2$ each

S.A. = (2πr$^2$) + (2πrh)

anonymous · Answer

pi x r(square) x h

anonymous · Answer

NO @Yashhere , that's volume!  Check you units!

anonymous · Answer

your* units

anonymous · Answer

Area is in units squared, volume is in units cubed.  She asked for surface area.

anonymous · Answer

@LivForMusic , FYI: r = radius, h = height

anonymous · Answer

Does this make sense to you both as to why?

anonymous · Answer

yeah i got it thanks :)

anonymous · Answer

yes thanks