Geometry and TrigonometryEasyRadius from the centre and a point
Geometry and Trigonometry practice question
A circle in the xy-plane has its centre at the origin and passes through the point (0, 6). What is the radius of the circle?
Answer: 6
The radius is the distance from the centre to any point on the circle, which is 6.
Common wrong answers
- If you answered 3
- 3 halves the radius.
- If you answered 12
- 12 is the diameter.
- If you answered 36
- 36 is the radius squared.
More Geometry and Trigonometry questions
- Easy
Two angles of a triangle measure 40° and 75°. What is the measure of the third angle? - Easy
A triangle has a base of 10 and a height of 6. What is its area? - Easy
In a 30°-60°-90° right triangle, the shorter leg (opposite the 30° angle) has length 6. What is the length of … - Easy
A rectangle has a length of 8 and a width of 3. What is its perimeter? - Easy
A closed rectangular box has a length of 5 inches, a width of 4 inches, and a height of 3 inches. What is the … - Easy
In the xy-plane, a circle has center (2, −5) and radius 3. Which equation represents this circle?
Not affiliated with the College Board. SAT is a trademark of the College Board.