Question

Please answer this question now

Answer 1

292.77

Explanation:

πr(r+
`√(h2+r2)`)

13 x 2 = 26

7 x 2 = 14

26 + 14 = 40

`√(40)` = 6.32

7 + 6.32 = 13.32

3.14 x 7 = 21.98

21.98 x 13.32 =

292.77

Answer 2

Approximately 439.6 square millimeters.

Explanation:

The formula for the surface area of a cone is the following:

`A=\pi r^2+\pi r l`

Where, r is the radius and l is the slant height.

The radius is 7 and the slant height is 13. We also use 3.14 for π Thus:

`A=(3.14)(7)^2+(3.14)(7)(13)\\\text{Use a Calculator}\\A\approx 439.6`