That in the first one is 30 and in the 2d one is 8 minus (less) than the first one
Answer:
xy is equal to 15 Q understood
I think "u" stands for units. 
means units squared which is like saying ft^2 if you were looking for the area of something with feet dimensions. So in this case, the circle has a diameter of x units (u) and an area of x units^2 (
). It is not the same as r. "r" is most always going to be used to represent the radius.
Answer:
A
Step-by-step explanation:
You don't know whether they're all 90 degrees because we don't know about AB and CD.
