2009 · Q48
If A is the area of a triangle in cm 2 , whose sides are 9 cm, 10 cm and 11 cm, then which one of the following is correct?
Elementary MathematicsAlgebra
- AA < 40 cm 2
- B40 cm2 < A < 45 cm 2
- C45 cm2 < A < 50 cm 2
- DA > 50 cm 2
Explanation
Solved; answer B.