Consider the equation of a line given by

Consider the equation of a line given by 

Which describes an edge to edge tiling?

Which describes a chord?

Consider a polygon with n = [a] sides. What is the sum of the interior angles? Enter just the numeric value below. Do NOT include the unit of measurement. 

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

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

Consider the ellipse with a horizontal axis of 16 and a vertical axis of 12. Which of the following is the graph 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. 

Find the area of the triangle below. Round to one decimal place and enter just the numeric value in the blank below. Do NOT include the unit of measurement.