Front | Back |
Acute angle
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![]() An angle that measures less then 90 degrees |
Acute triangle
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![]() A triangle that has all acute sides |
Adjacent angles
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![]() Angles that are next to each other |
Angle
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![]() Two lines that share the same vertex |
Complementary angles
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![]() Two angles that are adjacent and add up to 90 degrees |
Congruent
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![]() Same size and shape |
Congruent angles
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![]() angles that are the sme size and shape |
Decagon
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![]() A ten-sided polygon |
Edge
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![]() A segment joining two different verticies |
Endpoint
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![]() A point at the end of a ray or line segment |
Equilateral triangle
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![]() A triangle with all congruent sides and angles |
Heptagon
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![]() A seven-sided polygon |
Hexagon
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![]() A six-sided polygon |
Intersecting lines
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![]() Two lines that cross over one another |
Isosceles triangle
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![]() A triangle that has two lines and angles that are congruent |