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| A segment with endpoints at the midpoints of two sides of a triangle. |
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| A midsegment is always ________ to the side of the triangle that it does NOT intersect. |
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| A midsegment's length is always _______ of the length of the side of the triangle it does not intersect. |
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| Drawing three midsegments into a triangle creates ________ congruent triangles because of the SSS postulate. |
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| A segment that has one endpoint that is the midpoint of a triangle's side; the segment and side form a 90-degree angle at this point. |
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| Any point on a perpendicular bisector is ___________ from the endpoints of the side to which it is perpendicular. |
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| The point where the three perpendicular bisectors meet; it is the center of a circle that touches all of the triangle's vertices. |
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| A segment that has one endpoint at a triangle's vertex and cuts the angle at this vertex exactly in half. |
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| Any point on an angle bisector is ___________ from the sides of the angle it bisects. |
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| The point where the three angle bisectors meet; it is the center of a circle that is tangent (just barely touches) all of the triangle's sides. |
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Definition
| A segment that has one endpoint at a triangle's vertex and the other endpoint at the midpoint of that vertex's opposite side. |
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| The point where the three medians meet; it is the balance point of the triangle. |
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| The distance from any vertex of a triangle to the centroid is ___-_______ (fraction) of the total length of the median. |
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Definition
| A segment that has one endpoint at the vertex of a triangle. The segment extends to the vertex's opposite side and intersects it at a 90-degree angle. It represents the height of a triangle. |
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Definition
| The point where the three altitudes meet. |
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