Geometry and Trigonometry practice question

Answer: 12

Circumference = π × diameter, so the diameter is 12.

Common wrong answers

If you answered 6

6 is the radius.

If you answered 24

24 doubles the diameter.

If you answered 36

36 is the radius squared.

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?