Geometry and TrigonometryEasy–MediumArea of a quarter circle
Geometry and Trigonometry practice question
A quarter circle has a radius of 4. Its area can be written as kπ. What is the value of k?
Answer: 4
The full circle's area is 16π; a quarter of it is 4π.
Common wrong answers
- If you answered 2
- 2 halves 4 again.
- If you answered 8
- 8 is a semicircle.
- If you answered 16
- 16 is the full circle.
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?
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