Question

The sides of angle are in the ratio 3 5 7 and its perimeter is 300 m find its area

Answer 1

Answer:

The sides of a the triangular plot are in the ratio 3:5:7. So, let the sides of the triangle be 3x, 5x and 7x.

Also it is given that the perimeter of the triangle is 300 m therefore,

3x+5x+7x=300

15x=300

x=20

Therefore, the sides of the triangle are 60,100 and 140.

Now using herons formula:

S = (60 + 100 + 140)/2 = 300/2 = 150m