Answer:
d. if (radius > 0) System.out.println(radius * radius * 3.14159);
Explanation:
The positive values are those values that are greater than 0(zero).0 is considered to be nonnegative number it is neither positive nor negative and for a zero radius the area will be 0.As we know the are of the circle is π*radius*radius, and π is 3.14159.So the correct answer matching to this condition is option d.
Which checks if the radius is greater than 0 then find the radius and print it.
Answer : The center lane is designated for left turns
Explanation: This lane is used so that drivers would pull into in order to turn left when a clear merge is available. Its main purpose is not to cause traffic jam while waiting for the chance to turn left. It is illegal to use this lane for any other purposes