Question

Use a net to find the surface area of the cone to the nearest square centimeter. Use 3.14 for pie The numbers are 19cm and 8cm

Answer 1

678.672cm^2

Explanation:

Given data

A cone is described by the length and radius

l=19cm

r=8cm

The formula for the surface area of the cone is

T.S.A=πrl+πr^2

Substitute

T.S.A=3.142*8*19+3.142*8^2

T.S.A=477.584+201.088

T.S.A=678.672

Hence the surface area is

678.672cm^2