The lateral surface area of a cylinder is 792cm². If its height is 14cm, then its volume (in cm³) is? [Take π = 22/7 ]

If the curved surface area of a cylinder is 126π cm² and its height is 14 cm, what is the volume of the cylinder?

PA and PB are two tangents to a circle with center o from a point P outside the circle. A and B are points on the circle. If ∠OAB = 35° than ∠APB is equal to: 

The side of a square is 8 cm. If a square is made by joining the mid points of each sides of this square and this process goes up to infinity. Calculate the sum of areas of all the squares made.

In a triangle ABC, ∠ABC = 75⁰ and ∠ABC = π⁰/4, The circular measure of ∠BAC is :

In ∆ ABC measure of angle B is 90⁰. If cos A = $$ 5\over 13 $$ and AB = 10 Then what is the length of side BC ?

A copper wire is bent in the shape of a square of area 81 cm². If the same wire is bent in the form of a semicircle, the radius (in cm) of the semicircle is (take π=22/7 ) 

The diameters of two cones are equal. If their slant heights are in the ratio 5: 2, then the ratio of curved surface areas of the cones is _________ .