Geometry and TrigonometryEasy–MediumLength of one sixth of a circle
Geometry and Trigonometry practice question
An arc makes up one sixth of a circle with radius 12. The length of the arc can be written as kπ. What is the value of k?
Answer: 4
The circumference is 24π, and one sixth of it is 4π.
Common wrong answers
- If you answered 2
- 2 uses the radius 12 instead of the circumference 24π.
- If you answered 6
- 6 is the fraction's denominator, not the length.
- If you answered 24
- 24 is the whole circumference.
More Geometry and Trigonometry questions
- Easy–Medium
A circle has a radius of 6. What is its area? (Use A = πr².) - Easy–Medium
A right triangle has legs of length 6 and 8. What is the length of the hypotenuse? - Easy–Medium
A circle has a radius of 5. What is its circumference? (Use C = 2πr.) - Easy–Medium
What is the midpoint of the segment joining the points (2, 3) and (8, 11)? - Easy–Medium
What is the measure, in degrees, of angle B? - Easy–Medium
What is the area, in square centimeters, of the trapezoid?
Not affiliated with the College Board. SAT is a trademark of the College Board.