Question

Find the cost of levelling the ground in the form of triangle having sides 51m,32m and 20m at the rate of ₹3/m2

Answer 1

First we will take out the area of triangle =1/2 ×base ×height=
$\frac{1}{2} \times 51 \times 32$
32 cancelled by 2 =16. then 16 ×51
$51 \times 16 = 816$
Then to find the cost we will multiply ₹816 ×3 =₹2448 is the answer