The base of a parallelogram and a triangle are the same length, and both figures have the same area. What is true about height of the triangle?

In the diagram of circle a what is m

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Give me the equations of two lines that have the same slope but are not parallel.