checking an answer, will medal !!
Which angle’s measure is equal to the sum of the meaures of ∠BAC and ∠BCA?
http://media.edgenuity.com/evresources/8101/8101-04/8101-04-01/8101-04-01-assessment/8101-04-01-08.png

∠CBA?

these are the other 3 options!
∠CBE
∠DAC
∠BCF

Question

checking an answer, will medal !!
Which angle’s measure is equal to the sum of the meaures of ∠BAC and ∠BCA?
http://media.edgenuity.com/evresources/8101/8101-04/8101-04-01/8101-04-01-assessment/8101-04-01-08.png

∠CBA?

these are the other 3 options!
∠CBE
∠DAC
∠BCF

mjdennis · Answer

Okay, so ∠BAC and ∠BCA are two interior angles of a triangle.
The THREE interior angles add to 180
∠CBA is the other interior angle, so ∠CBA MIGHT be the right answer, but it won't ALWAYS be the right answer!

Here is a half-way step to the answer: 
What goes in the blank here?
∠BAC + ∠BCA = 180 - ____