Find the measure of each angle 21)<1

22)<2

23)<3

24)<4

25)<5

26)<6

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem