Question

Item 1

Find the surface area of the cone. Round your answer to the nearest tenth.



The surface area is
30
m².

Answer 1

9514 1404 393

Answer:

113.1 m²

Explanation:

The surface area of the cone is ...

SA = πr(r +s) . . . . . . where r is the radius and s is the slant height

SA = π(4 m)(4 m + 5 m) = 36π m² ≈ 113.1 m²

The surface area is about 113.1 m².