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11 Cards in this Set
- Front
- Back
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(Polygons) Sum of measures of interior angles
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180(n-2)
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(Polygons) One interior angle of a regular polygon
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180(n-2)/n
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(Polygon) Sum of exterior angles
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360
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(Polygon) One exterior angle=
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n/360
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Parallelograms
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quadrilateral with opposite sides parallel
-opposite angles are congruent -opposite sides are congruent -consecutive angles are supplementary -diagonals bisect each other -if there is one right angle, then all four angles are right |
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Rectangle
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-a parallelogram with 4 right angles
-diagonals are congruent. |
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Rhombus
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a Parallelogram with four congruent sides
-same properties of parallelogram -diagonals are perpendicular -diagonals bisect angles |
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Square
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A Rhombus with four right angles.
-has all the prop. of a parallelogram -all prop of rectangle -all prop of rhombus |
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trapezoid
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-has only 1 pair of parallel sides
-Base Angles are equal/pairs |
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Isosceles Trapezoid
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legs are congruent, both pairs of base angles are congruent, diagonals are congruent.
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Median of Trapezoid
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Parallel to bases, and connects midpoints of legs.
m=1/2 (b one+b two) |
