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Terms in this set (25)

3 undefined terms in geometry
1. point
2. line
3.plane
Collinear
3 points on the same line
Coplaner
on the same plane
parallel
two lines that do not intersect
perpendicular
two lines that intersect at 4 right angles
Skew
two lines that do not intersect, but are not parallel
two lines that intersect will meet at a point
two planes that intersect will meet at a line
Distance Formula
Midpoint formula
Triangle Inequality theorem
1. Sum of any two sides of a triangle must always be greater than the 3rd side
2. the largest angle in a triangle must always be across from the longest side; smallest angles across from the shortest side
SOHCATOA
Opposite/hypotunes
adjacent/hypotunes
opposite /adjacent
vertical angles
two angles form by intersecting lines that are across from each other and there congruent
Linear pair
two adjacent angles that for a straight line
Complementary angles
two angles that add up to 90 degrees
Supplementary angles
two angles that add up to 180 degrees
Adjacent angles
two angles that share a vertex is one common side
Congruent angles
two angles with the same measure
Angle addition Postulate
two pieces or more of an angle add up to a whole angles
Midsegment
A segment connecting the midpoints of two sides of a triangle
Perpendicular bisector
Medians
Altitude
angle bisector
In any right triangle , the biggest side must always be
A. Hypotenuse
B. Opposite leg
C. Adjacent leg
D. Any side could be the biggest
A. Hypotenuse
In a 30-60-90- triangle, to get from the smallest side to the hypotenuse you:
A. Multiple by radical 2
B. Multiply by 2
C. Divide by 2
D. Divide by 2
...
opposite rays
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