Homework Answers:
Proofs with segments and angles:
Reminders:
1) segment addition and angle addition start with letters.
ex1)
2) If you are given that things are =, you may have to
~
~ (definition of =)
change to =.
3) Definitions of Midpoint, Bisect, Angle Bisector have
"congruent" in them!
Proofs:
ex 2) Given: AC bisects <BAD, m<BAC = 30
Prove: m<DAC = 30
ex 3) Given: M is between A and C.
AM = 20 and MC = 20
Prove: M is the midpoint of AC.
ex 4) Given: <A and <B are supplementary.
m<A = 100
Prove: m<B = 80
ex 5) Given: AC and BD intersect at B.
Prove: m<ABD + m<DBC = 180
ex 6) Given: m<1 = 5x + 44, m<4 = 9x + 8
Prove: m<1 = 89