Question

Calculate the area of triangle, whose sides are in the ratio 7 : 5 : 4 and perimeter equal to 32 cm.

Answer 1

Answer:

Perimeter of triangle=a+b+c

sum of ratio =7x + 5x +4x= 16x

16x =32

x= 32÷16

x=2

then,

7x= 7×2 =14

5x = 5×2=10

4x= 4×2=8