Question

The perimeter of a triangle is 44 cm.One of its sides is 4 cm smaller then the twice as big as the third side.Find the side of the triangle

Answer 1

The side of the triangle

a=8cm

b=20cm

c=16cm

Explanation:

Perimeter = 44 cm

a= x

b=2x+4

c=2x

So the perimeter of a triangle is the sum of its sides

`a+b+c=44cm\\x+(2x+4)+(2x)=44cm\\x+2x+2x-4=44cm\\5x=44-4\\x=(40)/(5) =8cm`

a= 8cm

b=2*8+4=20 cm

c= 2*8= 16 cm

Check:

a+b+c=44cm

(8+20+16)cm=44cm

44cm=44cm