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 Girls’ Angle Bulletin, Volume 13, Number 5
 LCM Optimal Sequences
 Girls’ Angle Bulletin, Volume 13, Number 4
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 Why the Girls’ Angle Bulletin?
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Tag Archives: trigonometry
Girls’ Angle Bulletin, Volume 13, Number 3
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. We open with the first half of an interview with Draper Labs mathematician Erin Compaan. Dr. Compaan received her doctoral degree in … Continue reading
Girls’ Angle Bulletin, Volume 12, Number 6
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. From Day One, Girls’ Angle has wished to hire a woman with a doctoral degree in mathematics as Head Mentor at our … Continue reading
Girls’ Angle Bulletin, Volume 8, Number 6
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. The object on the cover of Volume 8, Number 6 is called the Chebyshev Lollipop. It is based directly on an idea … Continue reading
Girls’ Angle Bulletin, Volume 8, Number 5
The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. Volume 8, Number 5 of the Bulletin kicks off with an interview of Ivana Alexandrova. Ivana is an Assistant Professor of Mathematics at … Continue reading
Do you believe this?
Here’s a triangle: I’ll use the vertex labels to also denote the corresponding angle measures. Take the sines of all 3 angles in the triangle: , , and . Would you believe it if I told you that these three … Continue reading
Posted in Contest Math, math
Tagged law of cosines, Ptolemy's theorem, similarity, sine, triangles, trigonometry
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Trig Decor
Who says trig is boring?
Feeling Functions in Your Bones: Arctangent
We have a lot of intuition about the things we do every day. If a mathematical function describes one of these habits, all that intuition applies to understanding the mathematics. Imagine standing at the edge of a road. Perhaps you’re … Continue reading
Posted in math, Math Education
Tagged arctangent, mathematical intuition, trigonometry
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