SOLUTION: Hello! Can you help me solve this? “If angle a and angle b are vertical angles and angle a is 90 degrees, what is angle B?

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Question 1179536: Hello! Can you help me solve this?

“If angle a and angle b are vertical angles and angle a is 90 degrees, what is angle B?
Found 3 solutions by mananth, ikleyn, n2:
Answer by mananth(16949) About Me  (Show Source):
Answer by ikleyn(53619) About Me  (Show Source):
You can put this solution on YOUR website!
.

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Hello! Can you help me solve this?
“If angle a and angle b are vertical angles and angle a is 90 degrees, what is angle B?
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@mananth attached an irrelevant plot to his post.

Actually, vertical angles are equal (= congruent).
It is written in every textbook on Geometry.

So, if angle 'a' is 90 degrees, then vertical angle 'b' is also 90 degrees.

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Solved,  answered and explained.


To learn about vertical angles,  read the lessons
    - Angles basics
    - HOW TO solve problems on supplementary, complementary or vertical angles - Examples
in this site.



Answer by n2(54) About Me  (Show Source):
You can put this solution on YOUR website!
. 

Vertical angles are congruent and have equal measures.


So, if angle A is 90 degrees, then vertical angle B is 90 degrees, too.

Solved and explained.

The plot and the writing in the post by @mananth are irrelevant to the problem,
so you can ignore them.