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Mathematics
Triangles
Triangles
Triangles
Introducing triangles and three different types of them
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School Yourself
180 degrees in a triangle
See if it's really true, and then prove it!
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School Yourself
Triangles by angle
Learn about right, acute, and obtuse triangles
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Altitudes
Perpendicular line segments in triangles
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Medians of triangles
Line segments connecting vertices and midpoints
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Isosceles triangles
They have two equal sides, but what about their angles?
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Triangle inequality
The rules a triangle's side lengths always follow
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Big angles, longer sides
In triangles, sides and their opposite angles are related!
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Triangle area: SAS
Find a triangle's area using 2 sides and the angle between
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Triangles
Estimation
7
Coordinate
25
Statistics
4
Derivatives
12
Teachers
Denis Zelvys
Member
Jackson, United States of America
Danyelle Stesner
Member
United States of America
Ryan Jackson
Member
Toms River, United States of America
Karan Modi
Member
Yanbu Al-Bahr, Saudi Arabia
Brian McLogan
Member
Jacksonville, United States of America
