2014 · Q73
The area of a rectangle lies between 40 cm^2 and 45 cm^2. If one of the sides is 5 cm, then its diagonal lies between
Elementary MathematicsGeometry
- A8 cm and 10 cm
- B9 cm and 11 cm
- C10 cm and 12 cm
- D11 cm and 13 cm
Explanation
Other side between 8 and 9 cm; diagonal = √(25 + s^2) lies between √89 ≈ 9.4 and √106 ≈ 10.3, i.e. between 9 and 11 cm.