SOLUTION: The lateral surface area of a regular square pyramid is 240 m^2. If each side of its base is 10 m long, what is its slant height?

Question 1076966: The lateral surface area of a regular square pyramid is 240 m^2. If each side of its base is 10 m long, what is its slant height?
Answer by ikleyn(52783)   (Show Source): You can put this solution on YOUR website!
.
In this case, the lateral surface consists of 4 (four) congruent triangles.

As the first step, find the area of one single triangle.

Knowing the area and the base length of a single triangle, find its height.

This height is exactly the slant height.

On surface area of pyramids see the lessons
    - Surface area of pyramids
    - Solved problems on surface area of pyramids
in this site.

Also, you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lessons are the part if this textbook under the topic
"Surface area of 3D solid bodies".

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