6th Grade Math Textbook, Fundamentals

 &KDSWHU 9-2 Classify and Measure Angles Objective To classify angles by angle measure • To describe the position of po ...

Lesson 9-2 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Estimate the measure of each angle. Classify each as acu ...

 &KDSWHU 9-3 Key Concept Complementary Angles Two angles with a sum of 90 are called. Each angle is the complementof th ...

Lesson 9-3 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Use the diagram. Find the missing angle measures. BECan ...

 &KDSWHU 9-4 A is a line that intersects two or more lines at different points. When a pair of parallel lines is inter ...

Lesson 9-4 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Use the figure at the right for exercises 1–8. Justify y ...

 &KDSWHU 9-5 Congruent Angles and Line Segments Objective To recognize congruent angles and line segments • To identify ...

Lesson 9-5 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Use the diagram at the right. 1.Name 2 pairs of congruen ...

 &KDSWHU 9-6 Line Constructions Objective To construct a line perpendicular to a given line through a given point on th ...

Lesson 9-6 for exercise sets. &KDSWHU  &KHFN<RXU3URJUHVVI Use a compass and a straightedge to complete each c ...

convex polygons concave polygons  &KDSWHU 9-7 Polygons Objective To find the exterior and interior angles of polygons• ...

Lesson 9-7 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Find the sum of the angle measures for each polygon. 1.o ...

 &KDSWHU 9-8 Key Concept Classifying Triangles Triangles can be classified by the lengths of their sides, by the measur ...

Lesson 9-8 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Use the figure to answer the questions. 1. How many tria ...

9-9 Congruent Triangles Objective To identify congruent triangles • To explore angle-side relations in triangles To use congrue ...

Lesson 9-9 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Here are some important relationships between the sides ...

 &KDSWHU 9-10 Triangle Constructions Objective To construct a triangle congruent to a given triangle• To construct a tr ...

Lesson 9-10 for exercise sets. &KDSWHU  &KHFN<RXU3URJUHVVII 1.Use a compass and a straightedge to construct a ...

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WX Z Y 17 cm 30 10 cm Lesson 9-11 for exercise sets. &KDSWHU  3UDFWLFH $FWLYLWLHV Classify each quadrilateral by g ...