You have a cone with a radius of 4ft and a height of 10ft. find the area of the triangle formed by a perpendicular cross-section through the cone’s center.

Area of triangle is:

40 square feet

Step-by-step explanation:

We are given a cone that has  radius=4 ft

and height=10 ft

We have to find the area of the triangle formed by a perpendicular cross-section through the cone’s center.

The triangle has base equal to the diameter of the cone=8 ft

(Since, diameter=2×Radius)

and height of triangle=height of cone=10 ft

Hence, Area of triangle=

                                      =

                                      = 40 ft²

Hence, area of triangle is:

40 square feet

d

step-by-step explanation:

d