Question

Find the surface area of the cone. Use 3.14 for T.

Answer 1

Explanation:

Circle area:

`cA \: = ( (8)/(2))^(2) * π = 50.24 \: {in}^(2)`

Circle perimeter:

`cP \: = 2( (8)/(2)) *π = 25.12 \: in`

Pyramidal area:

`pA \: = (25.12 * 7) \: = 175.84 \: {in}^(2)`

Total area:

`tA \: = (50.24 + 175.84) \: = 226.08 \: {in}^(2)`