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Math vocab B
Math Vocab
word | meaning |
---|---|
Repeated Addition Property of Multiplication | If n is a positive integer, then nx= x+x+.....+x |
like terms | Terms that involve the same variables to the same powers. |
unlike terms | Terms that involve different variables or the same variable with different exponents. |
Multiplication property of Equality | When equal quantities are multiplied by the same number, the resulting quantities are equal. |
Distributive property of Multiplication over addition | For any numbers a,b, and x,ax+ab=(a+b)x and x(a+b)= xa+xb. |
Distributive property of Multiplication over subtraction | For any numbers a,b, and x,ax-ab=(a-b)x and x(a-b)= xa-xb. |
net | A plane pattern for a three-dimensional figure. |
surface area | The sum of the areas of the faces of a solid. |
acre | A unit of area equal to 43,560 square feet. |
height | The perpendicular distance from any vertex of a triangle to the side opposite that vertex. |
altitude | The perpendicular segment from a vertex of a triangle to the opposite side of the triangle. |
base of a triangle | The side of a triangle perpendicular to an altitude. |
Area formula for any triangle | Let b be the length of a side of a triangle with area A. Let h be the lenght of the altitude drawn to that side. Then A= 1\2 bh. |
trapezoid | A quadrilateral with at least one pair of parallel sides. |
Area formula for a trapezoid | Let A be the area of a trapezoid with bases b1, and b2 and height h. Then A=1\2xh(b1+b2). |
height (trapezoid) | The distance between the bases of the trapezoid. |
base (trapezoid | In a trapezoid, one of the parallel sides. |