Why do some people sleep with hair rollers

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section