# Math Stack - WGU Math Stack#71366 Hide All Show All Shuffle...

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WGU Math Stack #71366 Hide All Show All Shuffle Help Question Answer weight The measure of force of objects exerted by gravitational pull. Used on Earth with mass interchangeably. Rectangle Perimeter P=2l+2w area A measure of the interior of a planar (flat) figure. volume A measure of the interior of a solid; the # of unit cubes necessary to fill the interior of such a solid. perimeter The distance around a figure. mass A quantity of matter, as opposed to weight which is a force exerted by gravitational pull. skip counting Mathematic technique for teaching multiplication. rote counting Counting by memory, but without understanding of actual concrete objects. rounding identify place value, if # to the right is 5 or higher, round place value # up 1 and change all numers to the right of it to zeros. If # to the right is less than 5 than leave place value # alone and change all #s to right to zero. prime numbers Divisible only by 1 and itself. Rectangle Area A=lw Triangle Perimeter P=a+b+c Triangle Area A=1/2 bh Circle Perimeter C=2πr Circle Area A=πr² Rectangular solid total surface area 2lw+2lh+2wh Rectangular solid volume lwh Right circular cylinder solid total surface area 2πr(h + r) Right circular cylinder solid volume πr²h Pythagorean Theorum In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. a²+b²=c² Right angle always 90° Sphere total surface area A=4πr²

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Sphere volume 4/3πr² obtuse angle measuring more than 90° and less than 180° acute angle measuring less than 90° theorem A statement that can be proved using definitions, postulates, and previously proven theorems. straight angle 180° supplementary angles two positive angles whose sum is 180° transversal a line that intersects two or more lines in the same plane at different points. trapezoid a quadrilateral with only two pair of opposite sides parallel. tangent a line that lies in the same plane as a circle and intersects the circle in exactly one point. corresponding angles
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## This note was uploaded on 01/09/2012 for the course DIVERSITY 601.4 taught by Professor Professor during the Spring '11 term at Western Governors.

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Math Stack - WGU Math Stack#71366 Hide All Show All Shuffle...

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