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Chapter 12: Q9. (page 485)

Sketch the following pyramid. Then find its lateral area.

A regular square pyramid with base edge 12 and lateral edge 10.

Short Answer

Expert verified

The sketch of the pyramid will be as shown

The lateral area is 192 square units.

Step by step solution

01

Step 1. Given information.

A regular square pyramid with base edge 12 and lateral edge 10.

02

Step 2. Sketch the pyramid.

Now to draw pyramid, first draw a parallelogram for the base and sketch diagonals and then draw a vertical segment at the point where the diagonal intersects and then join the vertex to the base vertices,

Thus, the pyramid can be obtained as:

03

Step 3. Interpretation.

Form the above graph and side and height it can be observed that the lateral area of pyramid is 192 square unit.

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