What is the measure of the obtuse angle in this figure?

Its not 180

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.

How to use order of operation in 20 divide by 4 multiply 5 = 1

In which form is the following function written? y = - 2(x – 3)(x + 5)