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Geometry (McDougal Littell) -- chapter 4 terms
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Gravity
Terms in this set (12)
congruent figures
Figures that have the same size and shape
congruent triangles
2 triangles are congruent if and only if all pairs of corresponding sides and angles are congruent
perpendicular line-plane
A line and plan are perpendicular if and only if
1) if they intersect
AND
2) the line is perpendicular to all the lines of the plane that pass through the point of intersection.
base angles
Two angles that have the base as a side.
vertex angle
The angle formed by the legs of an isosceles triangle.
Midpoint
A point that divides a segment into two congruent segments
Hypotenuse
the side of a right triangle opposite the right angle
legs of a right triangle
the two sides that form the right angle
median of a triangle
a segment from a vertex to the midpoint of the opposite side
altitude
a perpendicular segment from a vertex to the line containing the opposite side
perpendicular bisector
A line that is perpendicular to a segment at its midpoint.
equidistant
equally distant from two points
IN THE IMAGE, P IS EQUIDISTANT FROM A AND B
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