NDA2019MathematicsProbabilityActual
What is the probability that an interior point in a circle is closer to the centre than to the circumference?
Options
- A1 4
- B1 2
- C3 4
- DIt cannot be determined
Correct answer
A. 1 4
Step-by-step solution
If r is the radius of circle, A= r^2 Probability = ( r 2 )^2 r^2 = r^2 4 1 r^2 = 1 4