Two circles have the same center, and the radius of the larger circle is r. if the radius of the smaller circle is3 units less than r, which of the following represents the area of the shaded region

4.5%

step-by-step explanation:

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )

29 is x=.7

30 is y=3.375 or 3 and 3/8