Question

The length of the sides of triangle are in the ratio 3 : 4 : 5 and its perimeter is 144cm.Find the area of the triangle​

Answer 1

Answer:

3x+4x+5x=144

12x=144

x=144/12

x=12

Answer 2

Answer:

total=3+4+5

total=12

perimeter of triangle=a+b+c

perimeter of triangle=12

144=12

length of side=144/12

length of side=12

length of 1st side=3*12=36

length of 2nd side=4*12=48

length of 3rd side=5*12=60