Let A denote set of quadrilaterals having two diagonals equal and bisecting other.Let A denote set of quadrilaterals having two diagonals equal and bisecting other at 90.Then A∩B denotes

The two adjacent sides of a cyclic quadrilateral are 2cm and 5cm and the angle between them is 60.If the third side is 3cm,then the fourth side of length

If X is any point within a square ABCD and on AX a square AXYZ is described,which of the following is correct?

1.BX=DZ or BZ=DX

2.<ABX=<ADZ or <ADX=<ABZ

Select the correct answer using codes below

The diameter of wheel that makes 452 revolutions to move 2km and 26 decametre is equal to

An equilateral triangle BOC is drawn inside a square ABCD.If angle AOD=2θ,what is tanθ equal to? 

30 metallic cylinders of the same size are melted and cast in the form of cones having the same radius and height as those of the cylinders.

Consider the following statements

1.A maximum of 90 cones can be obtained

2.The curved surface of the cylinder can be flattened in the shape of a rectangle but the curved surface of the cone when flattened has the shape of a triangle

Which of the above statements are correct?