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Question

A round table cover has six equal designs as shown in figure. If the radius of the cover is 28 cm, find the cost of making the designs at the rate of Rs 0.35 per cm2 . (Use 3=1.7) [3 MARKS]

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Solution

Concept: 1 Mark
Application: 2 Marks

Area of circle =π×282=2464

The hexagon is made up of 6 equilateral triangles of side 28 cm.

The area of hexagon
=6×282×34=1999.2

The area of design
=24641999.2=464.8 cm2

Total cost
=464.8×0.35

=Rs162.68


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