Question

The Sides of a triangular the ratio 3: 5 : 7 and its perimeter is 300m.
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Answer 1

your question is incomplete.

plz ask it properly dear.

what do we have to find? it's not mentioned.

Answer 2

$\huge\fcolorbox{cyan}{pink}{ANSWER-:}$

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=260+100+140=2300=150 m

Area of the triangle is:

A=s(s−a)(s−b)(s−c)=150(150−60)(150−100)(150−140)=150×90×50×10=6750000

=15003 m2