The formula for a circle's area is 
. We are given an area of 38.465 square inches for a quarter of it.
Multiply this value by 4 to compensate for the quarter circle.
Divide both sides by pi (Note: I'm using the conventional value of 3.14)
Take the positive square root of both sides
The radius is 7 inches. Let me know if you have any questions, thanks!
Radius is 1/2 of the diameter.
If The circ is 64. Divide it by Pi 64/3.14= circle’s diameter of 20.38. Radius is 1/2 of diameter 10.19
The correct answer is A) a translation 2 units right and 4 units down.
Both of the reflections listed would keep the digits but change their signs and/or placement.
A translation 2 units right subtracts 2 from the x-coordinate. A translation 4 units down subtracts 4 from the y-coordinate. Comparing each pre-image point to its image, we can see that is what happened.
