MATHEMATICS · Subjective · CBSE · Mathematics · Heron's Formula · Heron's Formula
Problem
A triangular agricultural plot has a perimeter of 150m. Two of its sides measure 47m and 58m.
(i) Determine the length of the third side.
(ii) Calculate the area of the plot.
(iii) The farmer plans to install a three-strand barbed-wire fence completely around the plot. If the wire costs Rs 12 per metre, find the total expenditure on fencing.