Question

The sides of a triangle plot are in ration of 3:5:7 And it's perimeter is 300 m . find its area.
answer is too be good​

Answer 1

Step-by-step explanation:

this is step by step explanation

Answer 2

$\huge\mathfrak\green{Answer}$

Suppose that the sides ,in metres are

3x,5x and 7x .

The sum of these three =300

Therefore,

15x = 300 which give X =20

so the sides of the triangles are

3×20m ,5×20m and 7×20m

I.e 60m,100m And 140m

We can find this this with using

Heron's formula ?

Formula of this

$\large\mathfrak\green{we \: have \: s \: \frac{60 + 100 + 140}{2} = 150m }$

And the area will be

$\small\mathfrak\green{ \sqrt{150(150 - 60)(150 - 100)(150 - 140) {m}^{2} } }$

$\large\mathfrak\green{ \sqrt{150 \times 90 \times 50 \times 10} {}^{2} {m}^{2} }$

$1500 \sqrt{3 {m}^{2} }$