- #1
DGK
- 3
- 0
Homework Statement
Determine a simplified, factorised expression, in terms of the radius (r), for the surface area of a cone where diameter (D) = perpendicular height (h)
Homework Equations
A = πr (r + √(h^2 + r^2))
The Attempt at a Solution
h=D=2r
A = πr (r + √(2r^2 + r^2))
A/π = r (r + √(2r^2 + r^2))
Last edited: