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18 Cards in this Set
- Front
- Back
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Acute angle |
an angle whose measure is less than 90 degreases |
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Right Triangle |
A triangle with one right angle |
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Complementary Angle |
Two angles are complementary if the sum of their measures is 90 |
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Triangle |
A figure formed by three line segments that intersect only at their endpoints |
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Congruent segments |
Congruent line segments are simply segments with the same measure
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Adjacent angle |
Adjacent angles are two angles that have a common vertex and a common side. And do not overlap
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Equilateral triangle |
equilateral triangle is a triangle in which all three sides are equal.
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Straight angle |
an angle of 180°.
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Diagonal |
A Line segment whose endpoints are vertices that are neither adjacent nor on the same face |
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Vertical angles |
Opposite angles formed by the intersection |
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Scalene triangle |
A triangle with no congruent sides |
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Isosceles Triangle |
A triangle with at least two congruent sides |
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Face |
A flat surface of a polyhedron |
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Congruent |
having the same measure |
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Edge |
The line segment where two faces of a polyhedron intersect |
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Prism |
A polyhedron with two parallel congruent faces called bases
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Obtuse angle |
An angle whose measure is between 90 and 180 |
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Perpendicular |
two lines that intersect and make right angles |
