Question

The sides of a triangular field are 165m, 143m and 154m. Find the cost of ploughing it at 12 paise per sq meter. (Using Heron’s formula)

Answer 1

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{ANSWER}}}}}}$

s=a+b+c/2

s=165+143+154/2=231

a=231[231-165] [231-143] [231-154] {keep it inside the root}

=231[66] [88] [77] {keep it inside root}

=10164 root 2