Mr. Whitney wants two of the angles to be represented by the expressions 3x + 20 and 2x + 10, whose sum is 180°. Use the new
diagram and drag the expressions below to represent the new angle
measures based on this situation.
3x + 20
2x + 10
Justify your choice of angles by naming the angle pairs with which you
started
What must the value of the variable be in order for Liberty and
Broughton to be parallel? Take a picture or type your work on the
following slide