A regular hexagon is circumscribed about a circle with a radius of 6. Find the area of the shaded region shown. Give the exact answer. (Do not approximate or any square root.)

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?