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+1 vote
8.6k views
in Mathematics by (3.5k points)

The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122m, 22m, and 120m (see the given figure). The advertisements yield an earning of Rs 5000 per m2 per year. A company hired one of its walls for 3 months. How much rent did it pay?

1 Answer

+1 vote
by (5.8k points)
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Best answer

The sides of the triangle (i.e., a, b, c) are of 122 m, 22 m, and 120 m respectively.

Perimeter of triangle = (122 + 22 + 120) m 2s = 264 m

s = 132 m

By Heron’s formula,

Therefore, the company had to pay Rs 1650000.

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