Question

Find the total area of a cylinder whose radius is 2 cm and height is 4 cm

Answer 1

Do you mean surface area?

Answer 2

yes

Answer 3

can u help me with it

Answer 4

Okay.
So, if the radius is 2, then the area of two circles is

2A= 2(pi*radius^2)
2A = 2(pi*4)
2A = 8pi

and then there's the other part of the cylinder ->
it's the circumference times the height

so C = 2r*pi
C = 2*2*pi
C=4pi

4pi*4 = 16pi

so 16pi+8pi = 24pi

Answer 5

thats right thanks

Answer 6

yw :)