Which of the following angles can be trisected using only a compass and straightedge?

a) 175
b) 125
c) 45
d) 65

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Determine the relationship of ab and cd given the following points

The table below shows the angle measurements for triangle abc and triangle xyz. if triangle abc is similar to triangle xyz, what does angle z equal, in degrees?