Answer:
21.0
Step-by-step explanation:
The cross section of interest is a triangle whose base is the diameter of the cone, 7 m, and whose height is that of the cone, 6 m. The area is given by ...
A = (1/2)bh
A = (1/2)(7 m)(6 m) = 21 m²
In square meters, the area of the cross section is 21.0.
