SOLUTION: Given the points A(0,0), B(4,3) and C(2,9) what is the measure of angle ABC?

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Question 349694: Given the points A(0,0), B(4,3) and C(2,9) what is the measure of angle ABC?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!

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The angle that AB makes with the x-axis is,
tan%28BAX%29=3%2F4
BAX=36.87degrees
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The angle that AC makes with the x-axis is,
tan%28CAX%29=9%2F2
CAX=77.47degrees
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ABC=CAX-BAX
ABC=77.47-36.87
highlight%28ABC=40.6%29degrees