Question 32
Mensuration of Plane ShapesWhat is the area between two concentric circles of diameters 26cm and 20cm?
- A.100π
- B.169π
- C.69π
- D.9π
- E.269π.
Show the answer and explanation
Answer: C (69π)
Explanation
The radii are 13cm and 10cm, so the ring has area π(13² − 10²) = 69π cm².