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Triangles
Term | Definition |
---|---|
Scalene | No equal sides |
Isosceles | Two equal sides |
Equilateral | Three equal sides |
Acute | All angles less than 90 degees |
Obtuse | One angle larger than 90 degrees |
Right | One angle equal to 90 degrees |
CPCTC (Corresponding Parts of Congruent Triangles are Congruent) | If triangles are proven to be congruent, then you can say that the corresponding parts of those triangles are congruent. |
Congruent | Same size and same shape |
Similar | Same shape but different size |
Hypotenuse | The side across from the 90 degree angle in a right triangle. |
Sine | opposite over hypotenuse |
Cosine | adjacent over hypotenuse |
Tangent | oppostie over adjacent |
Angle of elevation | Angle from the ground (bottom) and going up. Looking up |
Angle of depression | Angle from above (top) and going down. Looking down |