Question

Side of a triangle are in the ratio of 3:5:7and its perimeter is 300cm . Find its area

Answer 1

according to question

3x:5x:7x = 300

ok

3x+5x+7x=300

15x=300

x=300/15=20

3(20)=60

5(20)=100

7(20)=140

ok

then find out the area