Which is another way to write the expression r•(18-3)

30 in the diagram line e and made parallel to each other and line p and q are transversal. use properties of special angles formed by parallel lines and their transversals to find the missing angle measures. m< 3=65 m< 15=120 m< 7= m< 4= m< 6= m< 1= m< 16= m< 18= m< 21= m< 10= m< 11= m< 12=

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?