Please help I only have 20 minutes to do this

What is the slope of the line shown below?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Arectangular lawn is 65 m long and 34 m wide. over time, people have walked along a diagonal as a shortcut and have created a straight path. what is the length of the path, to the nearest tenth of a meter? enter your answer as a deicmal in the box. m