Question

two sides of a triangular field are 12m and 15m . if the cost of fencing the field twice is rs 90 per metre. find the third side of the field​

Answer 1

The third side of the triangular field is 19 meters.

Let's call the third side of the triangular field "x". Then, we can use the Pythagorean theorem to find the value of x.

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

So, in this case, we have:

x² = 12² + 15²

x² = 144 + 225

x² = 369

x = √369

x = 19

So, the third side of the triangular field is 19 meters.

And, the cost of fencing the field twice is

2 ₓ (12 + 15 + 19) ₓ 90

= 2 ₓ 46 ₓ90 = 8520 Rupees.

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