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27 votes
27 votes
PLEASEEE HELP!!!!! I’m desperate!

PLEASEEE HELP!!!!! I’m desperate!-example-1
User Sayalok
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2 Answers

19 votes
19 votes
When lines intersect they formed angles. angles are the spaces or shapes form between intersecting lines. In this problem they want us to find the angles c and b.

In this problem are two lines which intersect, this intersection creates 4 angles.

Answer: Angles B and C are 71 degrees.

Step by step explanation: Angles b and c are vertical angles, therefore they will be the same amount. One of the angles is given, which is 109. Knowing that a straight angles is 180 degrees, we can subtract 180 from 109 to get the answer.

180-109= 72 degrees.
You can double check by adding 72 to 109, which gives you 180.

Hope this helps!
User KingNestor
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16 votes
16 votes
The angle across from the 109 degree is vertical so they’re congruent.
And angles c and b are across from each other so they’re vertical; subsequently, they’re congruent as well.
The straight lines equal 180 degrees.
180-109=71.
Thus, both b and c are 71 degrees.
User Oliver Weichhold
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3.1k points