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# Saxon Pre-Calc L 1-5

### Saxon Pre-Calculus Lessons 1-5 Vocabulary and Formulas

Point a location
Line a straight curve that has no ends
Curve an unbroken connection of points
Plane a mathematical line that has no width and continues forever in both directions.
coplanar lines that lie in the same plane
skew lines lines that are not in the same plane
Straight angle an angle with a measure of 180 degrees
Right angle an angle with a measure of 90 degrees
Acute angle an angle with a measure between 0 and 90
Obtuse angle an angle with a measure between 90 and 180
Equiangular a shape in which all angles are the same
Equilateral triangle a triangle with all equal side
Isoceles triangle a triangle that has two sides with equal lengths
Scalene triangle a triangle that has side of all different lengths
Parallel lines lines that never intersect
Transversal a line that cuts or intersects one or more other lines in the same place
Volumes of Cylinders and Prisms The volume of a cylinder or a prism is equal to the product of the area of a base and the perpendicular distance between the bases.
Lateral Surface Area of Right Cylinder and Right Prisms The lateral surface area of a right cylinder or a right prism is the perimeter of a base multiplied by the height (where the height is defined to be the perpendicular distance between the bases).
Lateral surface area the area of all surfaces except the bases
Volume of a cone or pyramid The volume of any cone or pyramid equals one third the product of the area of the base and the height.
Triangle inequality postulate The sum of the lengths of any two sides of any triangle is greater than the length of the third side.
Pythagorean inequalities c2 > a2 + b2 and c2 < a2 + b2
root(x)*root(x) x
X^1/2 rootx
Created by: skyisflylikeag6