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°

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°

anonymous · Answer

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°

anonymous · Answer

May someone please help me?

phi · Answer

for blank space 1.

Do you know about 2 parallel lines and a transversal?
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