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12 Cards in this Set
- Front
- Back
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Acute angle |
An angle measuring less then 90° |
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Acute triangle |
A triangle which has three acute angles |
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Adjacent angles |
Two angles that have both a vertex and a side in common but do not have any points in common |
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Angle |
A figure formed by two rays having a common endpoint. |
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Arc |
two points on a circle and all points in between |
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Base angles |
The angles opposite the legs of an isosceles triangle |
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Base |
The noncongruent side of an isosceles triangle |
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betweenness of points |
B is between A and C if (1) A, B, and C are collinear points and (2) AB+BC |
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Bisect |
To seperate into two congruent parts |
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Bisector of a line segment |
A line, ray, or line segment that intersects the line segment at its midpoint dividing the line segment into two congruent parts |
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bisector of an angle |
a ray that originates at the vertex of the angle and divides it into two congruent angles |
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center |
the fixed point that is equidistant from a fixed point |
