Please help me with this geometry problem

Mathematics

1 answer:

FromTheMoon [43]3 years ago

6 0

Hello from MrBillDoesMath!

Answer:

Choice A

Discussion:

As the lines are parallel, corresponding angles are equal. This means that

angle x (just to the left of the letter a) and its corresponding angle ( just above line b -- above the the "2x" value shown) are equal..

In other words,

x = 180 -2x

as there is 180 degrees in a straight line.

Add 2x to both sides of the equation:

x + 2x = 180 - 2x + 2x =>

3x = 180 =>

x = 60

Regards,

MrB

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