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Warm Up Locate the following: 1. Geogebra: Sp. Rt. Triangles Activity – No geogebra print out required 2. Tree Measuring Activity 3. Geogebra: Parallelogram Activity – No geogebra print out required 4. Int. and Ext. Angles of Quadrilaterals – (blue/green paper) 5. Geogebra: Interior Angles in Polygons – 2 parts: PowerPoint and Worksheet from class If you absolutely cannot locate some of these please plan to come next Monday or Tuesday after school to make up the assignment. Answers to Geogebra Activity 1. 2. 3. 4. 𝟏𝟖𝟎(𝒏 − 𝟐) 𝒂𝒏𝒈𝒍𝒆 = 𝒏 Polygon Worksheets Distance Formula and Slope with Polygons Slope • Slope is used to determine if lines or sides of a figure are parallel, perpendicular, or just intersecting. • Parallel lines have EQUAL slope!! – Ex: • Perpendicular lines have NEGATIVE RECIPROCAL slope. – Ex: • If the slopes are neither equal nor negative reciprocals of each other then the lines are just intersecting. – Ex: y1 - y2 Formula: m = x1 - x2 Example Draw quadrilateral QUAD with vertices at: Q(1, 4), U(7, 8), A(9, 5), and D(3, 1). What type of quadrilateral is QUAD? Slopes: The Distance Formula • The distance formula is used to find the distance between two points: (x1 , y1) and (x2 , y2) d = (x1 - x2 ) + (y1 - y2 ) 2 2 Example Draw quadrilateral QUAD with vertices at: Q(1, 4), U(7, 8), A(9, 5), and D(3, 1). What type of quadrilateral is QUAD? Slopes: QU = 2/3 UA = -3/2 Distances: AD = 2/3 DQ = -3/2 Infinite Geometry Kuta Software - Infinite Geometry Name___________________ Name_____ Examples eThe Formula Distance Formula Date__________ Use the distance formula to find the distance ceFind between each pair of points. answer to the nearest tent the distance between eachRound pair ofyour points. Round your answer to between the following two points. 1) 2 2) y 4 -4x y 2) y 4 4 4 2 2 2 -2 2 4 -4 x -2 2 4 -4x -2 -2 -2 -2 -4 -4 -4 3) y 4 4) y 4 4) y 4 2 4-4 x-2 2 4 x -2 Examples -4 -2 -4 2 4-4 x -2 -2 -2 -4 -4 Use the distance formula to find the distance between the following two points. 3) y 2 4) y 4-4 4) y y 4 4 4 2 2 2 x-2 2 4 -4 x -2 2 4-4 x -2 -2 -2 -2 -4 -4 -4 5) y y 4 6) 6) y 4 y 4