Question

the perimeter triangle is300 cm if the side in the ratio of 3:5:7 find area​

Answer 1

Answer:

x- 20

Explanation:

Let the each side be x

given data .....

perimeter -300 cm

side 1- 3x

side 2- 5x

side 3- 7x

now use the formula

perimeter of triangle = side 1+ side 2 +side 3

300 cm =3x+5x+7x

300cm =15x

300cm/15 = x

20cm = x

so the value of x = 20cm

so now find the 3 sides

side1 = 3x = 3×20=60

side2=5x=5×20=100

side 3= 7x=7×20=140