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3 years ago

Value of B and A and explanation please

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

We can see that b and 140 are on a straight line. A straight line is an angle of 180. SO:

140 + b = 180
b = 40

As indicated by the arrows, the two horizontal lines are parallel, and also due to the transversal, we know that a and b are corresponding angles.

Therefore, a = 40, since corresponding angles are equal

b = 40
a = 40

Hope this helped! Ask me if there's anything you don't understand :D

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