In Worked Example 4.1 , it is easy enough to measure the width of a pyramid. To measure the height without climbing to the top, you can use a theodolite and determine the angle between the ground and the line joining the theodolite’s position and the top of the pyramid. What other information do you need in order to compute the surface area?

Data from worked example 4.1.

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WORKED EXAMPLE 4.1 Computing the Volume and Surface Area of a Pyramid In this worked Example, we develop a solution to a computational problem. Problem Statement Suppose that you are helping archaeologists who research Egyptian pyramids. You have taken on the task of writing a method that determines the volume and surface area of a pyramid, given its height and base length.