Graph a triangle (l mn) and rotate it 180° around the origin to create triangle l′m′n′.

describe the transformation using words. make sure you refer to the characteristics and the coordinates.
draw a line through points l and l′ and through m and m′. what do you notice about the lines you drew? do you think you would notice the same characteristics if you drew another line through points n and n′? how do you know?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart