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Math 8 Geometry
| Term | Definition |
|---|---|
| Translation | An image SLIDES on a graph. |
| Reflection | An image FLIPS over a line of symmetry. |
| Rotation | An image TURNS on a graph. |
| Dilation | An image gets larger or smaller by a scale factor. |
| Scale Factor | The number you multiply by. |
| If Triangle ABC is dilated, what is it's new name? | Triangle A'B'C' |
| The prime mark (for example: A') means.... | The new image after being transformed. |
| Supplementary Angles | Two angles that add to make a straight line or 180 degrees. |
| Vertical angles | Angles diagonal from each other are congruent. |
| Adjacent angles | Angles that are beside each other. |
| Complimentary Angles | Angles that add to make 90 degrees or a right angle. |
| Triangles always have how many degrees? | 180 |
| The exterior angle of a triangle is always equal to.... | The sum of the other two interior angles. |
| Pythagorean Theorem is.... | a^2 + b^2 = c^2 |
| Hypotenuse | Longest side of a right triangle; the side that doesn't touch the right angle (c in the Pythagorean Theorem) |
| Legs of Right Triangle | The two shortest sides of a right triangle; the two sides that meet at the right angle (a and b in the Pythagorean Theorem) |
| Volume of Cylinder | V = pi * r^2 * h |
| Volume of Cone | V = 1/3 * pi * r^2 * h |
| Volume of Sphere | V = 4/3 * pi * r^3 |
Created by:
cpierce
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