Question

Find the lateral area and surface area of each solid. Round to the nearest tenth.

(Please show your work)

Answer 1

lateral surface area means anything but the base, so that simply means the area of the four triangles with a base of 4 and a height of 7 each.

`\stackrel{ \textit{area of the four triangles} }{4\left[ \cfrac{1}{2}(\underset{b}{4})(\underset{h}{7}) \right]}\implies \text{\LARGE 56.0}~cm^2`