Question

the ratio of 3 sides of a triangle are 3:4:5and their perimeter is 144cm.find area of triangle​

Answer 1

Hey mate!!!!!

The answer is
$864 {cm}^{2}$
Refer to the attachment for the same....


HOPE IT HELPS YOU!!......

Answer 2

3
$3 + 4 + 5 \\ first \: side = 3 \div 144 \\ second \: side = 4 \div 144 \\ third \: side = 5 \div 144 \\ area = 1 \div 2 \times first side \times second \: side$