A In Exercises 1 and 2, complete the proof.
1. Given AB and CD bisect each other at point M and BM = CM.
Prove AB AM + DM
M м
B
STATEMENTS
REASONS
1. BM CM
1. Given
I
2.
2. CM DM
3. BMDM
3.
4. BM = DM
4.
5.
5. Segment Addition Postulate (Post. 1.2)
6. AB = AM + DM
6.

Circle a has center of (2,3) and a radius of 5 and circle b has a center of (1,4) and a radius of 10. what steps will show that circle a is similar to circle b 1) dilate circle a by a scale factor of 2 2) translate circle a using the rule (x+1,y-1) 3) rotate circle a 180 degrees about the center 4) reflect circle a over the y-axis