X= -1 and x= 6
If you draw the triangle out, you’d realize that PS and SR are the same length. Therefore, you can set up the equation x^2 -3x=2x+6 to solve for x.
Surface area is 34 units2 or sq.
the volume is 10 units3 or cubed.
volume is the amount of cubes on the inside, and the surface area is each surface added together