Question

A triangle has one side that measures x, and the other two sides each measure 4 inches less than x. The perimeter is 19 inches.

Answer 1

Ist side=x

2nd and third sides=x-4 each

perimeter=x+(x-4)+(x-4)

but perimeter is equal to 19

19=x+x+x-4-4

19=3x-8

3x=19+8

3x=27

therefore x=27/3

=9inches