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Special Right Triangles
Last week in Geometry we worked with 30,60, and 90 degree right triangles and 45, 45, 90 degree right triangles. Along with them came a ton of new rules to follow and theorems to remember and at first it was extremely intimidating. But never fear, hints and shortcuts are here! First for 30, 60, 90;
Rule #1 : The short leg is always half the hypotenuse.
Shortcut: I don't have one just because it's probably the easiest to remember.
Rule #2: The long leg is short leg times the square root of three.
Shortcut: Remember, 30 degrees. Root Three. 3 and 3. Tada!
Now for 45, 45, 90;
Rule #1: The hypotenuse is Leg times the root of 2.
Shortcut: This is easy to remember because two legs have to be the same. Two. Root Two.
Rule #2: The leg is the hypotenuse over the root of 2.
Shortcut: It's the same thing as rule #1. If you remember that, you're all set!
I hope those hints/shortcuts help! Talk to you all next week!
Article posted May 13, 2012 at 07:54 PM •
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