Question

The three sides of a triangle are z+9, z+1, and z+2. If the perimeter of the triangle is 48, what is the value of z?

Answer 1

`z=12`

Explanation:

to get the perimeter of something you have to add all the sides of the figure

if `P=48`
then you add all the sides together and set it equal to 48 cause that is the perimeter
`(z+9)+(z+1)+(z+2)=48`
`3z+12=48`
`3z=36`
`z=12`