A pie is sliced into equal pieces each with a central angle of 60 degrees. Lexie ate one piece of pie. Lexie's slice was 8.73 inches squared. What is the area of the whole pie?

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.