Question

Triangle ABC is a right triangle. Point D is the midpoint of side AB and point E is the midpoint of side AC. The measure of angle ADE is 47°.

Answer 1

The flow chart with missing statements and reasons proves that the measure of angle ECB is 43°.

Answer 2

Which statement and reason can be used to fill in the numbered blank spaces?

1. Corresponding angles are congruent
2. Triangle Sum Theorem
3. Measure of angle AED is 43°.

1. Alternate interior angles are congruent
2. Base angle theorem
3. Measure of angle AED is 47°

1. Base angle theorem
2. Corresponding angle are congruent
3. Measure of angle AED is 43°.

1. Alternate interior angles are congruent
2. Triangle Sum Theorem
3. Measure of angle AED is 47°

Answer 3

i think its the first one; 1. Corresponding angles are congruent
2. Triangle Sum Theorem
3. Measure of angle AED is 43°.