A regular tiling can be made up of regular heptagons.

Consider an ellipse with a horizontal axis of 20 and a vertical axis of 10. When  , what does   equal? Round your answer to one decimal place and enter just the numeric value below. 

Consider an ellipse with a horizontal axis of 10 and a vertical axis of 20. Which of the following is the equation of this ellipse? 

Consider an ellipse with a horizontal axis of 10 and a vertical axis of 20. When  , what does   equal? Round your answer to one decimal place and enter just the numeric value below. 

An inscribed  angle has a measure of 82O. What is the measure of the central angle that subtends it?

A regular tiling can be made with regular hexagons.

Consider a circle with a radius of r = 5 in and a central angle of 120O. What is the arc length created by this central angle? Write your as a fraction in simplest form, leaving

An inscribed angle has a measure of 42O. What is the measure of the central angle that subtends it?

Convert 40.1o to degrees, minutes and seconds.

Find the missing lengths for the special right triangle shown below. That is, find the lengths without using the Pythagorean Theorem. Your answer should identify two values: x = _____ y = _____