Question

sides of a triangle are in the ratio of 12:17:25 and its perimeter is 580 cm find its area​

Answer 1

on dividing 580cm in the ratio 12 : 17: 25:, we get

a=(580×12/52)cm =133.84,

b= (580×17/52)cm= 190.16

c=(580×25/52)cm=2.222

we know that,

semi perimeter of triangle is the. sum of all the sides upon 2

133.84+190.16+2.222/2

s= 326.22

thus, area of triangle √s(s-a)(s-b)(s-c)

put the value of s and solve next step