INET || Mathematical Aptitude || Geometry || Polygons || Quiz 2020

A polygon has 54 diagonals . Then the number of sides of that polygon is

What is the number of pairs of perpendicular planes in a cuboid?

The volume of a hollow cube is 216 x³. The surface area of the largest sphere which can be enclosed in it is

IN a trapezium, the two non-parallel sides are equal in length, each being of 5 units. The parallel sides are at a distance of 3 units apart. If the smaller side of the parallel sides is of length 2 units, then the sum of the diagonals of the trapezium is

A circle of radius r is inscribed in a regular polygon with n sides (the circle touches all sides of the polygon). If the perimeter of the polygon is p, then the area of the polygon is: