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math voc. pt.2

area multiply length times width or count the number of squares in an area
perimeter the distance around a shape. Add up all the sides
parallel lines lines that never cross
perpendicular lines lines that cross in right angles
acute angle angle that is smaller than 90 degrees
obtuse angle angle that is larger than 90 degrees but less than 180 degrees
right angle angle that is 90 degrees
angle that is 90 degrees 180 degrees or a line
line a line that goes in both directions with no endpoint.
ray a line that goes in both directions with no endpoint.
line segment part of line that has two endpoints
exponents 2x2x2x2x2x2
equilateral triangle all 3 sides are equal
isosceles triangle two sides are equal
scalene triangle none of the sides are equal
acute triangle all 3 angles are acute
obtuse triangle only one angle is obtuse
right triangle one angle is right
trapezoid quadrilateral that has exactly one pair of parallel sides
parallelogram a quadrilateral whose opposite sides are parallel and are the same length
rhombus opposite sides are parallel and all sides are the same length
pentagon five sides polygon
hexagon six sided polygon
octagon eight sided polygon
Created by: 20090612