click below
click below
Normal Size Small Size show me how
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 |