Question

In the diagram of

△
△LPN below, QM
∥
∥PN, LQ=5, QP=35, and LM=10. What is the length of LN?

Answer 1

Basically, you could set these proportions up in two ways. You could set it up as 5/35=10/x, or you could set it up as 5/10=35/x. Either way, you will get the same answer. After setting one of them up, cross multiply. You should come out with 5x=350. Divide 350/5. Here you should get the answer of 70. 70 should be the length of LN