Aquadrilateral has 4 right angles and 4 sides of equal length. what is the name of the quadrilateral?

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long. calculate how many feet of fencing he will need to surround the entire lot.

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)