SAT Math: Geometry and Trigonometry
What are the center and radius of the circle defined by the equation ?
Center: (5, -3), Radius: 9
Center: (-5, 3), Radius: 3
Center: (5, -3), Radius: 3
Center: (-5, 3), Radius: 9
A circle has its center at (0, 0) and a radius of 7. Which of the following equations represents this circle?
x^2 + y^2 = 7
(x - 7)^2 + (y - 7)^2 = 49
x^2 + y^2 = 49
x^2 + y^2 = 14
A circle's center is at (1, -2) and it passes through the point (4, 2). What is the equation of the circle in standard form?
If a circle has a radius of 11, what is its diameter?
5.5
11
22
121
The endpoints of a diameter of a circle are (1, 5) and (7, -3). What is the radius of the circle?
\sqrt{52}
\sqrt{13}
5
10
The diameter of a circle has endpoints at (2, 4) and (6, 8). What are the coordinates of the center of the circle?
(4, 6)
(8, 12)
(2, 2)
(4, 4)
The equation of a circle is given by . What is the center of this circle?
(3, -2)
(-3, 2)
(6, -4)
(-6, 4)

How are we doing?
Give us your feedback and let us know how we can improve
Does the point (3, 4) lie on the circle defined by the equation ?
Yes
No
Cannot be determined
Only if the center is (0,0)
Determine whether the point (2,3) lies inside, outside, or on the circle .
Inside
Outside
On the circle
Cannot be determined
Two points on a circle are (0, 0) and (4, 3). What is the distance between these two points?
3
4
5
7