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Definition
| Lines in the same plane that never intersect |
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| A system of linear equations is formed by two or more linear equations that use the same variables. |
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| The surface area of a 3D figure is the sum of the areas of all its faces, including the bases. |
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Definition
| The sum of the areas of the lateral faces of a 3D figure, NOT including the bases. |
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| A line segment that has one endpoint at the center and the other endpoint on the circle; halfway. |
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Definition
In any right triangle, the sum of the squares of the lengths of the legs equals the square of the length of the hypotenuse.
a2 + b2 = c2 |
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| The longest side of a right triangle that is opposite the right angle. |
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| The number of cubic units needed to fill a solid 3D figure. |
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Definition
| A 3D figure with two parallel bases that are congruent; all other faces are rectangles. |
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| A 3D figure with two parallel circular bases that are congruent; its lateral face is a curved surface. |
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Definition
Multiplying a number by the sum or difference; same result as multiplying that number by each turm in the sum or difference.
7(8-x) = 56 - 7x |
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Definition
| A 3D figure with one circular base and one vertex. |
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Definition
The distance around a circle.
C = ∏d |
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Definition
| The set of all points in space that are the same distance from a center point. |
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| A line segment that passes through the center of a circle and has both endpoints on the circle. |
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| The number of square units enclosed by a figure. |
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Definition
| The point where two lines meet. |
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Definition
| An equation is linear if the graph of all its solutions is a line. |
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Definition
| The two graphed lines are parallel, or no value of the variable makes the two sides of the equation equal. |
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| The total distance around a 2D figure. |
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Definition
Less than or equal to
"at the most" |
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Definition
Greater than or equal to;
"at least" |
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Term
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Definition
| Operations that "undo" each other; the opposite |
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Term
| Infinitely Many Solutions |
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Definition
| A graphed equation is the exact same line of another equation; any value of the variable makes the two sides of the equation equal. |
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Definition
| Line that intersects two or more lines at different points. |
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Term
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Definition
| Lie on the same side of a transversal and in corresponding positions. |
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Definition
| Formed by two intersecting lines and are opposite each other (diagonal) |
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Definition
| An angle that measures 180º |
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Term
| Alternate Interior Angles |
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Definition
| Lie within a pair of lines and on opposite sides of the transversal. |
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Term
| Alternate Exterior Angles |
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Definition
| Lie outside a pair of lines and on opposite sides of the transversal. |
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