Which is the total surface area of this cone? A. 219.80 square centimeters B. 219.98 square centimeters C. 220.18 square centimeters D. 220.78 square centimeters

Question

asked Apr 5, 2020 167k views

1 Answer

Keyana · Answer 1 · 2020-04-09T11:48:32+0000

Answer:

A. 219.80 square centimeters

Explanation:

The total surface area is given by ...

A = πr(r+s)

where r is the radius and s is the slant height. Filling in the given numbers, you get ...

A = 3.14·(5 cm)·(5 cm +9 cm) = 219.80 cm²