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Unit 4
Stretching and Shrinking
13
Mathematics
7th Grade
12/12/2008

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Cards

Term
ray
Definition
It is a part of a line
Term
line
Definition
It extends without end in both directions
Term
angle N thire naming convention
Definition
Term
right angle
Definition
has a measure of exactly 90*
Term
acute angle
Definition
is less then 90*
Term
obtuse angle
Definition
is an angel that is more than 90* and less than180*
Term
straight angle
Definition
measaure exactuly 180*
Term
complementary angle
Definition
angles are a pair of angleswhose measures add to 90*
Term
supplementary angles
Definition
angles are two angles that form a straight line . the sum of the angles is 180*
Term
equilateral triangle
Definition
three eqaul sides and angles
Term
isosceles triangle
Definition
two equal sides and angles
Term
scalene
Definition
no equal sides and angles
Term
similar
Definition
same shape/ different size. In similar figure the angles are congruent, identical, same, equal. To get a similar figure all sides of the figure must be enlarged or reduced by the same amounr proportional.
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