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Triangles - names
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Key Concepts:
Terms in this set (10)
triangle
A polygon with three sides and three angles.
What is the SUM of all angles in a triangle?
180 degrees
congruent
equal, same
equilateral triangle
a triangle with three congruent (same) sides and congruent (same) angles
equilateral triangle's ANGLES are all
60 degrees
isosceles triangle
a triangle that has 2 congruent (equal) sides and two congruent (equal) angles
scalene triangle
a triangle with no congruent (equal) sides and no congruent (equal) angles.
acute triangle
a triangle with three acute angles (less than 90 degrees)
right triangle
a triangle with one right angle (90 degrees)
obtuse triangle
a triangle with one obtuse angle that is greater than 90 degrees.
THIS SET IS OFTEN IN FOLDERS WITH...
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