I got this:
Tennis court is a rectangle
(Rectangle - 2 sides the same length and the other 2 sides the same. So 2 pairs of equal length sides)
If one is 27 the other has got to be 27 as well - 27+27= 54
210 - 54 = 156
156 / 2 = the other "pair"
Hope that helps and correct me if I'm wrong!
15 1/8 -1 3/5=
15 5/40 -1 24/40=
605/40 - 64/40=
541/40= 13 21/40
Answer:13 21/40
The answer to that is y = -6
Add all of the interior angles to 1260. Then you simplify for x. After that you plug in what you found for X in the E expression.
The Pythagorean Proposition can help you explain this: