The size of each interior angle in a regular polygon is 165º. Work out how many sides the polygon has.

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3