Question

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

Answer 1

Answer:

1500√3m²

Step-by-step explanation:

Let the sides be 3x , 5x and 7x respectively

∴3x+5x+7x=300

⇒15x=300

⇒x=300/15

⇒20

∴The sides are (3x)= 20*3=60m

                         (5x)=20*5=100m

                         (7x)=20*7=140m

Area of triangle =√{s(s-a)(s-b)(s-c)}                        (where s is 1/2 of perimeter)

⇒√{150×90×50×10}

⇒100√(15×9×5)

⇒1500√3m²