Geometry and TrigonometryMediumArea of a quarter circle
Geometry and Trigonometry practice question
A quarter-circle garden bed has a radius of 4 metres. What is its area, in square metres?
- A. 4πCorrect
- B. 16π
- C. 8π
- D. 2π
Answer: A. 4π
A full circle of radius 4 has area 16π; a quarter of that is 4π.
Why the other answers are wrong
- B. 16π
- 16π is the full circle.
- C. 8π
- 8π is a half circle.
- D. 2π
- 2π is an eighth.
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