Can a circle with radius 2 be "squared"?

Is it possible for a a rectangle inscribed in a circle to have a diameter for a side? Explain. b a rectangle circumscribed about a circle to be a square? Explain.

The central angle corresponding to a circular brake shoe measures 60. To two decimal places how long is the curved surface of the brake shoe if the length of the radius is 7 in.

Show that there is no triangle for which a=4 feet, b=14 feet, and A=60.

A machinist needs to lay out three holes in a plate. Find, to the nearest thousandth millimeter, the length of side b in the figure.

An architect is planning to put a circular mosaic in the entry of a new building. The mosaic will be in the shape of a circle with radius of 6 feet. How many square feet of tile will be needed for the mosaic? (Round your answer up to the next whole number.}

Can a circle be inscribed in each of the following figures? a Parallelogram c Rectangle b Rhombus d Square