Chapter 12, Problem 34CR

To determine

To calculate: Lateral and surface area of pyramid.

Answer to Problem 34CR

Lateral area = $244.8c{m}^2$ , surface area = $308.8c{m}^2$

Explanation of Solution

Given information:

The given information is, Diameters of base are $8cm\times 8cm$ and height= 15.3 cm.

Formula used:

Lateral area $=2ha$ , where h=height and a=length of side of base.

Surface area = lateral area $+a^2$

Calculation:

  $\begin{array}{l}Givenh=15.3cm,a=8cm\\ Lateralarea=2\times 15.3\times 8\\ =244.8c{m}^2\\ surfacearea=244.8+64\\ =308.8c{m}^2\end{array}$