Answer:
A=50 B=40 C=90
Step-by-step explanation:
B is a right angle so its automatically 90 degrees since A=50 and a triangle has to be 180 degrees 90+50= 140, 180-140=40.
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Answer:
then 7,10,13 and so one so forth
Step-by-step explanation:
you are subtracting three as you go on.
