In the given figure, A, B, C and D are centres of four circles that have a radius of 1 unit. If a point is selected at random from interior of square ABCD, then what is the probability that it lies in the shaded region

In figure, a dart is thrown and lands in the interior of the circle. What is the probability that the dart will land in the shaded region?

In the Fig. 13.12, J K L M is a square with sides of length 6 units. Points A and B are the mid-points of sides K L and L M respectively. If a point is selected at random from the interior of the square. What is the probability that the point will be chosen from the interior of J A B ? (FIGURE)

In the figure, the smaller square has sides of length 2 and the larger square has sides of length 4. If a point is chosen at random from the larger square, what is the probability that it will be from the small square?

The triangles inside triangleABC , shown above, are formed by joining the midpoints of the sides and then repeating the process. If a point is chosen at random inside triangleABC ,what is the probability that the point lies in the shaded region ?

Suppose we have four boxes A,B,C and D containing coloured marbles as given below :One of the boxes has been selected at random and a single marble is drawn from it. If the marble is red, what is the probability that it was drawn from box A? box B?, box C?

In the circle shown above, O is the center and bar(AB) is a diameter . There are two semicircles with diameters bar(AO) and bar(BO) , and four smaller semicircles with congruent diameters bar(AC), bar(CO),bar(OD) and bar(DB) . A point is picked at random in the large circle . What is the probability that it lands in a shaded region ?

In the given figure, AB and PQ are perpendicular diameters of the circle whose centre is O and radius OA = 7 cm. Find the area of the shade region.

In the figure above, the radius of each circle is 1. If circles O and P touch the sides of rectangle ABCD only at the lettered points, what is the area of the shaded region?

In the given figure, ABCD is a square of side 7 cm. DPBA and DQBC are quardrants of circles each of the radius 7 cm. Find the area of the shaded region.

A point is selected at random from inside a circle. The probability that the point is closer to the circumference of the circle than to its centre, is