Question

Anyone know tis question

Answer 1

sides of the triangle => 70cm, 80cm and 90cm
semi perimeter => 240/2 => 120cm
therefore area =>
$\sqrt{120} (120 - 70)(120 - 80)(120 - 90)$
$\sqrt{120 \times 50 \times 40 \times 30}$
=> 10*10*3*4*root 5

=>
$1200 \sqrt{5 \: }$