Polygons Vocab. Word Scramble
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term | definition |
acute angle | angle less than ninety degrees |
acute triangle | triangle with all angles less than ninety degrees |
angle | two rays with a common endpoint |
complementary | adjective describing two angles whose sum is ninety degrees |
congruent | adjective describing figures with the same shape and size |
decagon | ten-sided polygon |
degree | unit of measure for angles (the most common) |
dilation | a type of transformation: the process of reducing or enlarging a figure |
inductive reasoning | a rule based on a pattern of several examples |
deductive reasoning | reasoning in which the conclusion is reached from previously known facts |
equilateral | all sides of a figure are congruent |
heptagon | seven-sided polygon |
hexagon | six-sided polygon |
indirect measurement | Indirect measurement is a technique that uses proportions to find a measurement when direct measurement is not possible. |
inscribed polygon | a polygon whose vertices rest on the circle |
isosceles | adjective for a polygon with two congruent sides |
line of symmetry | the fold line between two halves that mirror each other |
line symmetry | figures that match exactly when folded in half have line symmetry |
nonagon | nine-sided polygon |
obtuse angle | an angle measuring more than ninety degrees but less than 180 degrees |
obtuse triangle | a triangle containing one obtuse angle |
octagon | eight-sided polygon |
pentagon | five-sided polygon |
polygon | a simple closed figure formed by three or more line segments |
simple | adjective meaning that line segments do not cross each other |
protractor | a tool used to measure angles |
quadrilateral | four-sided polygon |
reflection | a mirror image of a figure across a line of symmetry |
regular polygon | a polygon with all sides congruent and all angles congruent |
rhombus | an equilateral quadrilateral |
right angle | an angle measuring exactly ninety degrees |
right triangle | a triangle containing a ninety degree angle |
scalene | adjective for a triangle with three unequal sides |
similar | adjective for polygons having corresponding angles congruent and corresponding sides in porportion |
straight angle | angle containing 180 degrees |
supplementary | adjective for two angles whose sum is exactly 180 degrees. |
tessellation | a repetitive pattern of polygons that fit together with no overlaps or gaps |
transversal | a line that intersects parallel lines |
trapezoid | a quadrilateral with exactly one pair of parallel sides |
triangle | a three-sided polygon |
vertex | the common endpoint where line segments or rays meet forming an angle |
translation | one type of transformation where a figure is slid vertically, horizontally, or both |
Created by:
DDavis
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