Answer:
Alternate Exterior Angles
Refer to the diagram below
Point C (3, -2) is rotated 90° turn anticlockwise and the image is (2, 3).
Notice the red line that is rotated 90° anticlockwise. The final position is given in green line.
Answer:
1. r=17
2. (-15,14) or (-15,-16)
Step-by-step explanation:
The radius of the circle is the distance from the center to the point on the circle, thus

The equation of the circle is

If point lies on this circle, then its coordinates satisfy the circle's equation:

If you would like to know the length of each side of the patio, you can calculate this using the following steps:
an area ... 200 square feet
a ... the length of one side
area = a * a = a^2
200 = a^2
a = sqrt(200)
a = 14.14 feet
The correct result would be 14.14 feet.