Question 174099
Could you give me the surface area of a cylinder when the radius is 6cm and the Length is 21cm.
:
The surface area of cylinder consists of the parts
Part 1: the height times the circumference (in this case it's the length)
Part 2: the area of the two ends
;
SA = (2*pi*r*h) + (2*pi*r^2)
:
In your problem; r=6, h=21
SA = (2*pi*6*21) + (2*pi*6^2)
;
SA = 791.68 + 266.19
:
SA = 1017.87 sq/cm