Answer:

Step-by-step explanation:
Given


Required
Determine the coordinates of L
Since T is the midpoint of K and L, we make use of:

and

Solving for 


Multiply through by 2



Solving for 


Multiply through by 2



Hence: The coordinates of L is:

It is an acute triangle since all the sides are less than 90 degrees (it's also equilateral)
The answer is
The side length of the square Kevin cuts is slightly less than the length the instructor required
Answer: No
Step-by-step explanation: No, because a proportional relationship is a line that goes up at a constant rate, and goes through the origin, an example of a proportional relationship is a straight line starting from the origin ( or what we call the starting point)