In the figure all the four shaded semicircles have same area. If we put a dot in the figure without looking into it, what is the probability of being the dot in the shaded semicircles?

Two semicircles are drawn in a square as shown. Ifwe put a dot in the figure,without looking into it, what is the probability of being the dot in the shaded region?

P,Q,R are the mid points of the sides of triangle ABC. Another triangle is drawn by joining these points. A One dot is placed into the figure without looking into the picture. What is the probability of falling the dot in triangle PQR. What is the probability of falling the dot outside the triangle.

In the picture below, ACB is a semicircle. Find the area of the shaded portion of the figure.

A box contains same size of 27 cards: Of these some are green and some are yellow A card is taken from the box, without looking into ịt, if the probability of the card become green is 1/3 a) What is the number of green cards? b) If a green card and 2 yellow cards are put in the box and a card is taken without looking into it What is the probability of it being green?

In the figure, the radius of the semicircle with centre O is 5 centimetres. PB=2 centimetres. What is the area of square PQRS? .

The figure shown below is formed by a rectangle with semicircles on each of its four sides. If the sides of the rectangle are 16 cm and 12 cm, what is the area of the figure?