Answer:
Distance is 8.485
Midpoint is (3,4)
Step-by-step explanation:
Use the points (-1,7) and (5,1)
Insert them into the equation and solve for D

Insert points into second equation to find midpoint

It all depends upon what other things are given If hypotenuse is not given, in cosine or reciprocals are useless. In that case only tan and cot will be equally convenient if adjacent sides are given.
18.614 because a=πh(r^2)/3 pretty sure thats the formula but the answer is correct
It reveals the slope and a single point on the line