Question

These cones are similar. Find the surface

area of the smaller cone. Round to the
nearest tenth.
2 cm
5 cm
Surface Area = [? ] cm2 Surface Area = 111 cm?

Answer 1

Answer:
`17.8 cm^(2)`

Answer 2

9514 1404 393

Answer:

17.8 cm²

Explanation:

The ratio of surface areas is the square of the ratio of the linear dimensions. The small/large linear dimension ratio is 2/5, so the surface area of the smaller cone is ...

A = (2/5)²(111 cm²) = 17.76 cm²

The area of the smaller cone is about 17.8 cm².