Question
Find the surface area of a right circular cone with radius of 5cm and height of 12cm.
Answers
Reiny
Do you want the area to include the circular base?
If so, that's a simple addition of the area of the circle
for just the sides,
SA = πrl, where l is the slant height
l^2 = 5^2 + 12^2
l = 13
SA = π(5)13)
= 65π
If so, that's a simple addition of the area of the circle
for just the sides,
SA = πrl, where l is the slant height
l^2 = 5^2 + 12^2
l = 13
SA = π(5)13)
= 65π