Runners participating in a charity event will run 2.1 km from the starting point to a water station and then run 1.75 km to the finish, as shown in the diagram below. A running event map. One portion of the race is 2.1 kilometers and the second portion is 1.75 kilometers.

How much farther do runners run from the start to the water station than from the water station to the finish?

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2