Question

The cone pictured has a surface area of____a0 square meters. (Use 3.14 for π .)

Answer 1

The cone pictured has a surface area of_268.2___a0 square meters

Explanation:

SA of a cone = πr² + πrs

s = slant height

s = √h² +r²

so combined together

SA of a cone = πr² + πr(√h² + r²) = πr(r +√h² + r²)

SA of a cone = 3.14*5(5+
`\sqrt{11^(2)+ 5^(2) }` ) =268.2038

Answer 2

Answer: A=286.2 m²

Explanation:

The surface area of a cone is
`A=\pi r(r+√(h^2+r^2) )`.

We are given h=11 m and r=5 m. With these values, we can plug them into the equation to find the surface area.

`A=\pi (5)(5+√(11^2+5^2) )`

`A=5\pi (5+√(146) )\\`

`A= 268.2 m^2`