Question

The sides of triangle are in the
ratio s:3:7 and the perimeter is
300 find area​

Answer 1

Step-by-step explanation:

let breadth be 3x and

length be 7x

area of triangle =

then you can solve it

Answer 2

$\huge{Answer}$

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= 60+100+140/2 = 300/2

=150 m

Area of the triangle is:

A =

$\sqrt{s( - a)(s - b)(s - c}$

$\sqrt{150(150 - 60)(150 - 100(150 - 140}$

=

$\sqrt{150 \times 90 \times 50 \times 10}$

=

$\sqrt{6750000}$

=

$\sqrt[1500]{3m}$