Question

contrapositives in geometry- i dont understand at all...help plez!

Answer 1

a contrapositve means you negate and switch the hypothesis and the conclusion

Answer 2

for example in geometry... say the conditional statement is
"if two parallel lines are cut by a transversal, then alternate interior angles are congruent"

the contrapositive statement would be
"if alternate interior angles are NOT congruent, then the lines cut by a transversal are NOT parallel"

all i did was swithc the two statements and negate them both, that is what contrapositive is.