Types of Triangles, Lecture notes of Geometry

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Name Date Types of Triangles “Three Sides” Three sides, three sides, three sides, say it with me one time, three sides. | love the number three, | always have, Try to give me four dollars, I'll give you one back. I'm a grown man, but | ride a tricycle, ‘Cause it’s got three wheels, get lost with that bicycle. So my favorite shape? It’s got three sides, It’s got three angles, spelled T-R-| A-N-G-L-E: triangle, A three sided polygon, I’m thankful. There are two ways to classify a triangle, The first is by the size of their angles. An angle is where two sides meet, Angles are measured in degrees. When each angle is less than 90 degrees, We've got an acute triangle, like these. And when one angle is more than 90, it’s true, We call that triangle obtuse. The longest side is always opposite, The largest angle, you can be confident. If it has a 90 degree angle, a right angle, We call that guy a right triangle. You can spot it ‘cause of the little square, You'll see it inside the right angle right there. Opposite the right angle is the hypotenuse, It’s the longest side, and the other two WFidcabulary