Find the cost of levelling the ground in the form of a triangle having the sides 51 m, 37 m - Maths - Triangles

Question

Find the cost of levelling the ground in the form of a triangle
having the sides 51 m,
37 m and 20 m at the rate of Rs 3 per m2

Ajanta Trivedi · Accepted Answer

the sides of the triangular ground are 51m , 37 m and 20 m .

now we will find the area of the triangular ground by Heron's formula:

$s = \frac{51 + 37 + 20}{2} = \frac{108}{2} = 54 m$

a = 51, b = 37 , c = 20

$A = \sqrt{54 * (54 - 51) * (54 - 37) * (54 - 20)} A = \sqrt{54 * 3 * 17 * * 34} A = \sqrt{6 * 9 * 3 * 17 * 2 * 17} A = \sqrt{6 * 6 * 9 * 17 * 17} A = 6 * 3 * 17 = 306 m^{2}$

cost of levelling = Rs. 3 per sq m.

total cost = 306*3 = 918 /-

hope this helps you.

cheers!!

Find the cost of levelling the ground in the form of a triangle having the sides 51 m,37 m and 20 m at the rate of Rs 3 per m2.

Find the cost of levelling the ground in the form of a triangle having the sides 51 m,
37 m and 20 m at the rate of Rs 3 per m2.