v15_Segment2_ReferenceSheet - GeometrySegment 2 Reference Sheet Module 6 Use distance formula and slope formula to classify triangles Classifying by

v15_Segment2_ReferenceSheet - GeometrySegment 2 Reference...

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Geometry—Segment 2 Reference Sheet Module 7 ° Slope - intercept form: y=mx+b, where b is the y - intercept and m is the slope. ° Point - slope form: y – y 1 = m(x – x 1 ) where (x 1 ,y 1 ) is a given point on the line and m is the slope ° Parallel lines are two lines that lie within the same plane and never intersect. Parallel lines have slopes that are equal. ° Perpendicular lines are two lines that intersect at 90 - degree angles. Perpendicular lines have slopes that are opposites and reciprocals and the product of the slopes is always –1. (also, undefined and zero slope lines) ° Classifying by angles: acute, right, obtuse ° Classifying by sides : equilateral, isosceles, scalene Properties of Parallelograms - Both pairs of opposite sides are congruent and parallel - The diagonals bisect each other - Both pairs of opposite angles are congruent - Consecutive angles are supplementary Properties of Rectangles - ALL PROPERTIES OF A PARALLELOGRAM PLUS - Contains four right angles - The diagonals are congruent Properties of Squares - ALL PROPERTIES OF A RECTANGLE PLUS - All four sides are congru- ent - The diagonals are perpendicular - The diagonals bisect the angles Properties of Rhombi - ALL PROPERTIES OF A SQUARE EXCEPT ...

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