Question

the sides of triangle are in ratio 3:5:7.find its area if its perimeter is 60cm​

Answer 1

Answer:

1/2*20*28=280

Step-by-step explanation:

3x+5x+7x =15x

15x=60

so 1 part 4cm ,X=4cm

3x=12

5x=20

7x=28

area of triangle 1/2*base*height or herons formula