Question

The perimeter of a triangle is 300 m. If the sides of triangle are in ratio 3:5:7 . Find the area of triangle.

Answer 1

Answer:

Step-by-step explanation:

Let the sides be = 3x,5x,7x

3x+5x+7x=300

15x =300

x=20 m

sides are =>  a=3x = 3*20 =60m

                     b= 5x= 5*20=100m

                    c= 7x = 7*20 = 140m

Area of triangle => s= (a+b+c)/2

                                  =300/2 = 150m

$\sqrt{s(s-a)(s-b)(s-c)}\\\sqrt{150(150-60)(150-100)(150-140)}\\\sqrt{150*90*50*10}\\\sqrt{6750000}\\=2,598.08 m^{2} (approx)$

                         

Answer 2

Here's ur answer.

Hope it helps u!!!!!!!!!!!!