Question

How do you find the surface area of the cone?

Answer 1

A=
`\pi`r(r+h2+r2)=
`\pi`·7·(7+122+72)≈459.44884

rounded off to 500 square millimetres

Explanation:

The total surface area of a cone is the combination of the curved surface as well as the base area of a cone. The formula to calculate the total surface area of the cone is:

TSA of cone =
`\pi`r^2 +
`\pi`r l = r (l + r) square units.