The diagonals of three faces of a cuboid are 13,√281 and 20 linear units.Then the total surface area of the cuboid is

From a circular piece of cardboard of radius 3 cm,two sectors of 40° each have been cut off.The area of the remaining portion is

What is the median of the distribution?

What is the median class?

Out of the two concentric circles,the diameter of the outer circle is 26cm and the chord MN of length 24 cm is tangent to the inner circle.The radius of the inner circle is

Consider the following questions

1.If the non-parallel sides of a trapezium are equal,then it is cyclic

2.If the chord of a circle is equal to its radius,then the angle subtended by this chord at a point in major segment is 30

Which of the above statements are correct?