A triangular piece of farmland has sides

MATHEMATICS · Multi-part · CBSE · Mathematics · Heron's Formula · Heron's Formula

Problem

120\,\text{m}

154\,\text{m}

and

170\,\text{m}

. The farmer intends to spread fertiliser over the entire field at the rate of Rs

6

per square metre. (i) Determine the area of the triangular field. (ii) Calculate the total cost of fertilising the field.