The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 6 units and s = 4 units, write an expression that can be used to calculate the surface area of the cone. (4 points)

Part B: What is the surface area of the cone? Show your work.

Question

The surface area of a cone with radius r units and slant height s units is shown below:

Surface area = 3.14(rs + r2)

Part A: If r = 6 units and s = 4 units, write an expression that can be used to calculate the surface area of the cone. (4 points)

Part B: What is the surface area of the cone? Show your work.

sachintha · Answer

Are you sure the surface area equation is correct?

anonymous · Answer

I hope so, this is the equation that was provided to us

sachintha · Answer

Ok so according to your book substitute the r and s values to that equation and get the value. Part A and B is basically the same to me. 

$Surface~area=3.14(6\times4+6^2)$

anonymous · Answer

ok, thank you so much!