Question

Find the surface area of the solid. If necessary, round your answer to the nearest whole number

Answer 1

Given:

radius (r) = 5m & slant height (l) = 11m

Formula:

`\text{Surface are of a cone= }\pi rl+\pi r^2`
`\text{Surface area of a cone= }(22)/(7)*5*11+(22)/(7)*5^2`
`\text{Surface area of a cone=}(22)/(7)(55+25)`
`\text{Surface area of a cone=}(22)/(7)(80)`
`\text{Surface area of a cone=}251.43m^2`

Rounding to the nearest whole number

`\text{Surface area of a cone=}251m^2`