If line L is parallel to line M, what is true about angle ABC and angle DEF?
A) They are obtuse.
B) They are congruent.
C) They are supplementary.
D) They are complementary.

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite