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17 Cards in this Set

  • Front
  • Back
acute triangle
a triangle having three acute angles
equilateral triangle
a triangle having all three sides of equal length
isosceles triangle
a triangle having two sides of equal length
triangle
a three-sides polygon
right triangle
a triangle that has one 90 degree angle
obtuse triangle
a triangle having one obtuse angle
scalene triangle
a triangle having three sides of different lengths
What is a three-sided polygon?
triangle
What is a four-sided polygon?
quadrilateral
What is a five-sided polygon?
pentagon
What is a six-sided polygon?
hexagon
What is a seven-sided polygon?
heptagon
What is a eight-sided polygon?
octagon
What is a nine-sided polygon?
nonagon
What is a ten-sided polygon?
decagon
What is a twelve-sided polygon?
dodectagon
What is a polygon?
a closed plane figure