. Find the length of the side of a regular hexagon inscribed in a circle of radius r meters

What is the area of a regular hexagon inscribed in a circle of radius r ?

Find the perimeter of a regular octagon in inscribed in a circle of radius 100 cm:

A particle of mass in is made to move with uniform speed v_0 along the perimeter of a regular hexagon, inscribed in a circle of radius R . The magnitude of impulse applied at each corner of the hexagon is

A particle of mass in is made to move with uniform speed v_0 along the perimeter of a regular hexagon, inscribed in a circle of radius R . The magnitude of impulse applied at each corner of the hexagon is

The length of the side (in cm) of an equilateral triangle inscribed in a circle of radius 8 cm is ___________.