lesson 2-6

Question 1

Vertical Angles Theorem

Answer 1

<1 ≅ <2 and <3 ≅ <4

    \  1   /
       \  /
   3   X   4
        /\
    /  2  \
 /            \

Question 2

Congruent Supplements Thm.

Answer 2

If <1 and <3 are supplements and <2 and <3 are supplements, then <1≅ <2.

Question 3

Congruent Complements Thm.

Answer 3

If <1 and <2 are complements and <3 and <2 are complements, then <1≅ <3.

Question 4

Right angles Thm.

Answer 4

all right angles are congruent.

Question 5

Thm 2-5

Answer 5

If <1≅ <2, and <1 and <2 are supplements then m<1=m<2=90