5x-28=3x-10
X=9
5*9-28=40
360-40-40=280
280/2=140=m<3
I believe d is the answer your welcome
Answer:
RIGHT Angle Addition Postulate.
Step-by-step explanation:
Applying the RIGHT Angle Addition Postulate gives m∠AEB + m∠BEC = m∠AEC. Applying the substitution property gives 45° + m∠BEC = 90°. The subtraction property can be used to find m∠BEC = 45°, so ∠BEC ≅ ∠AEB because they have the same measure. Since Ray E B divides ∠AEC into two congruent angles, it is the angle bisector.
The answer is 56 !
Your welcome :) !
