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Chapter 12: Q8. (page 485)

Sketch the following pyramid. Then find its lateral area.

A regular pentagonal pyramid with base edge 1.5 and slant height 9.

Short Answer

Expert verified

The sketch of the pyramid will be as shown

The lateral area is 33.75 square units.

Step by step solution

01

Step 1. Given information.

A regular pentagonal pyramid with base edge 1.5 and slant height 9.

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 33.75 square unit.

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Most popular questions from this chapter

Copy and complete the table below for the regular square pyramid.

Height,鈥�h厂濒补苍迟鈥夆赌塇别颈驳丑迟,鈥�l12叠补蝉别鈥夆赌塭诲驳别尝补迟别谤补濒鈥夆赌塭诲驳别15

What kind of figure in each lateral face in the following prism?

Find the volume and the total surface area of each solid in terms of the given variables.

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