3 years ago

In the diagram at below, m m I need help understanding this, please help!!!

Mathematics

1 answer:

tensa zangetsu [6.8K]3 years ago

4 0

Answer:

m<BAC= 110 degrees

Step-by-step explanation:

Since the outside angle m<BCD is 130 degrees the inside angle m<BCA would be 50 degrees. At this point you should know that inside angles of a triangle add up to 180 degrees so add the two angles that you know then subtract from 180 degrees. 50+20= 70 degrees and 180-70= 110 degrees.

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