The circumference of circle a is 3 times the circumference or circle b. Find circumference of circle b. Diameter of circle a is 27.

The diameter of circle "a" is 27. The diameter is half of the circle so 27*2 equals the circumference "54"

Now take 54/3 to find the circumference of circle b. Which is "18"

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

c

step-by-step explanation:

i think because what else can be a sample of every member