Question

PLEASE HELP ME ASAP!!!!!

Answer 1

First off lets note that this is an iscocleles triangle since the 2 base angles are equal. Additionally, we know that the 2 sides adjacent to the base are equal in iscocleles triangles. Therefore, RP=RQ

With that in mind, lets solve:

If RP=RQ then we can make the equation
`5x-4 = x+4` by using substitution

Now, we can solve for x:

`5x-4 = x+4`

`5x-x-4=x-x+4`

`4x-4 = 4`

`4x-4+4 = 4+4`

`4x = 8`

`4x/4=8/4`

`x=2`

Now that we know what x is equal to we can solve for PR

`PR = 5(2)-4`

`PR = 10-4`

`PR = 6`

Hope this helped!

Explanation: