Answer:
yes, it is a right triangle
Step-by-step explanation:
the other two angles are 35 and 55 degrees
∠СXA = ∠BXA + ∠СXB = 30°20' + 40°35' = 70°55'
Answer: the answer is C
Step-by-step explanation: trust me took the final yesterday ♀️
a. is <u><em>Substitution Property</em></u>
b. might be <u><em>definition of supplementary angles</em></u>