Question

1. Use the shape tools to draw a net for a scale model of one of the pyramids.2. Describe your scale 3. Find the lateral surface area of the real life pyramid.

Answer 1

The net of a rectangular pyramid consists of one rectangular base and four lateral triangular faces. the net of the given pyramids can be drawn like this:

For the first pyramid:

For the second pyramid:

The lateral surface area of these pyramids can bu calculated with the following formula:

$A=2\times b\times h$

Where b is the length of the side and h is the slant height.

For the first pyramid we have:

$A1=2\times230\times186=85560$

Then, the lateral surface area of the first pyramid equals 85560 square meters.

For the second pyramid:

$A2=2\times26\times27=1404$

Then, the lateral surface area of the second pyramid equals 1404 square meters.