SOLUTION: Angle A and angle B are supplementary . angle A = 100 degrees find angle B=

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Question 1078360: Angle A and angle B are supplementary . angle A = 100 degrees find angle B=
Answer by ikleyn(52832) About Me  (Show Source):
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Angle B = 180 - 100 = 80.

Learn on Supplementary angles from the lesson
    - Angles basics
in this site.

On solved problems similar to your see the lesson
    - Solved problems on supplementary and complementary angles
in this site.

Also,  you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lessons are the part if this textbook under the topics
"Basics of angles. Supplementary, complementary angles. Vertical angles. Parallel lines" and
"Finding angles of triangles, parallelograms and rectangles".