Find the cost of fencing the ground in the form of a triangle with sides $16 m, 12 m$ and $18 m$ . The rate of fencing is $R s 25$ per meter.

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Solution

Perimeter of triangle $= a + b + c = 16 + 12 + 18 = 46$ m
Cost of fencing for $1 m = R s .25$
Cost of fencing for $46 m = 46 \times 25 = R s .1150$ .

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