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°.. . . . The flow chart 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 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°

Answer 1

Below are the correct choices:

Corresponding angles are congruent
Triangle Sum Theorem
Measure of angle AED is 43°.
 
Alternate interior angles are congruent
Base Angle Theorem
Measure of angle AED is 47°
 
Base Angle Theorem
Corresponding angle are congruent
Measure of angle AED is 43°.
 
Alternate interior angles are congruent
Triangle Sum Theorem
Measure of angle AED is 47°

The answer is the 3rd one. I hope it helps. 

Answer 2

Answer:

A

Step-by-step explanation: