Question

the sides of the triangular plot are in the ratio 3:5:7 and its perimeter is 300 find its area

Answer 1

Answer:

45664444444544444 4 4 4. 7 4. 44. 7

Answer 2

Answer:

let the sides be 3x , 5x and 7x

perimeter = sum of all sides

300 = 3x + 5x + 7x

300 = 15x

x= 300/15

x= 20cm

3x = 20×3 = 60cm

5x = 20×5 = 100cm

7x = 20×7 = 140cm

now we have got the sides....so now we will find the area

let us consider as

a = 60cm , b = 100cm , c = 140cm

S = a + b + c / 2 = 60 + 100 + 140 / 2

S = 300/2

S = 150cm

√150 * 60 * 100 * 140

√3 *5*2*5*2*3*2*5*5*5*4*2*7*2*5

now bring out common factors and multiply...u will get the area

hope it's correct

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