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

Find the surface area of the cone. Use 3.14 for T.-example-1
User Mianlaoshu
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11 votes

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)

User Schesam
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