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Four equal circles are drawn on the four sides of a square in such a way that each of the circles touches two other circles. What will be the area outside the perimeter of the circles towards the middle of the square? If the measure of each side of the square is 28 cm. 
There is a square with four circles drawn such that the four corners of the square are the centers of the four circles. What is the ratio of the area of the square to the area enclosed between the circumferences of the circles? The radius of the circle is given as 7 units and the side of the square is equal to the diameter of the circles.
There is a square with four circles drawn such that the four corners of the square are the centers of the four circles. What is the ratio of the area of the square to the area enclosed between the circumferences of the circles? The radius of the circle is given as 7 units and side of the square is equal to the diameter of the circles.
In the following question, some statements are given followed by four conclusions. You have to take the given statements to be true even if they varies from commonly known facts. Read all the conclusions and decide which of the given conclusions logically follows from the commonly known facts. Statements: All squares are circles. Some rectangles are circles. Some triangles are rectangles. All triangles are hexagons. Conclusions: I. Some triangles are circles. II. Some rectangles are hexagons. III. Some triangles are both rectangles and circles. IV. Some squares are hexagons.
In a game with two players X and Y and given n (≥ 4) number of circles drawn on a plane paper, alternately each one of X and Y is suppose to join two different circles which were not already joined by a line. The winner is one who joins the last available pair of circles and the game ends. If X starts the game then:
A line cuts two concentric circles. The length of the chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) in squares of radii of two circles?
A line cuts two concentric circles. The lengths of chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) insquares of radii of two circles?
The radii of three concentric circles are in the ratio of 4 : 5 : 7. What is the ratio of the area between the two inner circles to that between the two outer circles?
In the given figure, B and C are the centres of the two circles. ADE is the common tangent to the two circles. If the ratio of the radius of both the circles is 3 : 5 and AC = 40, then what is the value of DE?
PA and PB are two tangents drawn to two circles of radius 3 cm and 5 cm respectively. PA touches the smaller and larger circles at points X and U respectively. PB touches the smaller and larger circle at point Y and V respectively. The centres of the smaller and larger circles O and N respectively. If ON = 12 cm, then what is the value (in cm) of PY?