A dart thrown lands in interior of circle of radius 1 feet. What is the probability that it hits the bull's eye if radius of bull's eye is 0.1 feet?

Find the area of the circle if its radius is 2.1 m.

Ina certain town, 40% of the people have brown hair, 25% have brown eyes, and 15% have both brown hair and brown eyes. If a person selected at random from the town has brown hair, the probability that he also has brown eyes is 1//5 b. 3//8 c. 1//3 d. 2//3

A particel comes round a circle of radius 1 m once. The time taken by it its 10s. The average velocity of motion is

Attempt the following : (1) Find the area of a circle with radius 7 cm.

The error in measurement of radius of a sphere is 0.1% then error in its volume is -

The equation of the circle passing through the point (1,0) and (0,1) and having the smallest radius is