Manny made a skateboard ramp shaped like a triangle. It is 6 feet long and 4 feet high. He wants to make another ramp that is shaped like a triangle similar to the first ramp. The new ramp will be 3 feet High.
What proportion can Manny use to find the length, x, of the new ramp.
A. 6/4=3/x
B. 6/4=x/3
C. x/4=6/3
D. 6/x=4/3
please do hurry, thank you!:)