Question

find the side of the triangle are in the ratio 2 is to 3 is to 5 if the perimeter is 40 cm find the area of triangle​

Answer 1

Step-by-step explanation:

let the side of the triangle be 2x,3x and 5x

2x+3x+5x=40

10x=40

x=4cm

a=2*4=8cm

b=3*4=12cm

c=5*4=20cm

area=a+b+c/2

=8+12+20/2

=40/2

=20

area=√s(s-a)(s-b)(s-c)

=√20(20-8)(20-12)(20-20)

=√20*12*8*0

=√0

=0cm^2