Pic attached
the following flowchart with missing statements and reasons proves that the measure of angle ecb is 43°:
which statement and reason can be used to fill in the numbered back spaces?
a) 1. corresponding angles are congruent
2. triangle sum theorem
3. measure of angle aed is 43°
b) 1. alternate interior angles are congruent
2. base angle theorem
3. measure of angle aed is 47°
c) 1. base angle theorem
2. corresponding angles are congruent
3. measure of angle aed is 43°
d) 1. alternate interior angles are congruent
2. triangle sum theorem
3.measure of angle aed is 47°