The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13

Question

3 years ago

7

centimeters. What is the approximate surface area of the cone? Use 3.14 for π and round to the nearest whole number. 267 cm2 283 cm2 456 cm2 487 cm2

1 answer:

Aloiza [94] · Answer 1 · 2022-06-08T07:52:37+03:00

5 0

Answer: 283 cm2

Step-by-step explanation:

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

A= $\pi r(r+\sqrt{h2+r2})$ Where r is the radius and h is the height.

Replacing: $\pi 5(5+\sqrt{(12)2+(5)2}$

Solving: 282,7 ≈ 283cm2