Question

the perimeter of a triangle is 300 if its sides are in the ratio3:57 find the area of the triangle​

Answer 1

Here is your answer-

Step-by-step explanation:

The perimeter of a triangle = 300

and ,

it's sides are in ratio 3:5:7

let its are l = 3x

b = 5x

h= 7x

To find , the are of triangle

Now,

Perimeter of triangle = 300

L + B + h = 300

3x + 5x +7x = 300

15 x = 300

so, x = 300/15 = 20

now ,

put this value of x in -

3x = 3 x 20 = 60 (l)

5x = 5 x 20 = 100(b)

7x = 7 x 20 = 140(h)

Area of triangle = 1/2 x b x h

1/2 x 100 x 140 = 7000.

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