URGENT,HOW TO FIND SURFACE AREA FOR A CYLINDER AND CONE?

Question

anonymous · Answer

SA of a cylinder is 2*pi*r^2*h where r is the radius and h is the height

SA of a cone is (1/2)*pi*r^2*h where r is the radius and h is the height.

anonymous · Answer

|dw:1360714782780:dw| can someone find the surface are for this cone and simplify how they got it?

anonymous · Answer

i meant cyliner

anonymous · Answer

I gave you the equations above.  Your radius is 3 and your height is 4.  

Oh.  Shoot.  There's a typo in those formulas from earlier.

So just plug those values into the surface area formula

SA =  2*pi*r^2 + 2*pi*r*h

which equals

2*pi*3^2 + 2*pi*3*4

anonymous · Answer

is the answer 131.8 units squared?

anonymous · Answer

thanks