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

The sides of a triangular plot are in the ratio 3:5:7 and its perimete

1.	The sides of a triangular plot are in the ratio 3:5:7 and its perimeter is 300m.Find its area
Answer» First we will take the common ratio X Then 3x +5x+7x=300m15x=300x=300/15=20 m3x =320 =60m5x=520=100m7x=7*20=140mSemiperimeter =(60+100+140)/2Then area could be find by putting herons formula that is when all the three sides of the triangle are given √s(s-a)(s-b)(s-c)Where s = semiperimetera=60b=100c=140