Subject(s) 
Geometry

Physical Description 
xii, 180 p. : ill. ; 22 cm 
Note 
Includes index 
Summary 
A practical guide to the critical concepts taught in a typical geometry course. Provides the basics you need to score high in geometry, or for parents helping kids study for exams 
Contents 
An overview of geometry. The geometry of shapes ; Geometry proofs ; Am I ever going to use this? ; Getting down with definitions ; Lines, segments, and rays ; Investigating the plane facts ; Everybody's got an angle ; Bisection and trisection  Geometry proof starter kit. The lay of the (proof) land ; Reasoning with IfThen logic ; Complementary and supplementary angles ; Addition and subtractions ; Like multiples and like divisions ; Congruent vertical angles ; Transitivity and substitution  Tackling a longer proof. Making a game plan ; Using all the givens ; Using IfThen logic ; Chipping away at the problem ; Working backward ; Filling in the gaps ; Writing out the finished proof  Triangle fundamentals. Taking in a triangle's sides ; Triangle classification by angles ; The Triangle Inequality Principle ; Sizing up triangle area ; Regarding right triangles ; The Pythagorean Theorem ; Pythagorean triple triangles ; Two special right triangles  Congruent triangle proofs. Proving triangles congruent ; Taking the next step with CPCTC ; The Isosceles Triangle Theorems ; The two equidistance theorems  Quadrilaterals. Parallel line properties ; The seven special quadrilaterals ; Working with auxiliary lines ; The properties of quadrilaterals ; Proving that you've got a particular quadrilateral  Polygon formulas. The areas of quadrilaterals ; The area of regular polygons ; Angle and diagonal formulas  Similarity. Similar figures ; Proving triangles similar ; Splitting right triangles with the AltitudeonHypotenuse Theorem ; More proportionality theorems  Circle basics. Radii, chords, and diameters ; Arcs and central angles ; Tangents ; The pizza slice formulas ; The anglearc formulas ; The power theorems  3D geometry. Flattop figures ; Pointytop figures ; Spheres  Coordinate geometry. The coordinate plane ; Slope, distance, and midpoint ; Equations for lines and circles  Ten big reasons to use in proofs. The reflexive property ; Vertical angles are congruent ; The parallelline theorems ; Two points determine a line ; All radii are congruent ; If sides, then angles ; If angles, then sides ; Triangle congruence ; CPCTC ; Triangle similarity 
Series 
For dummies


SOE Curriculum Lab

