Chapter 10 Two Dimensional Figures
Lesson 3: Classify Triangles by SidesLesson 5: Classify Quadrilaterals |
Lesson 4: Parallel Lines and Perpendicular LinesLesson 6: Line Symmetry |
Lesson 7: Find and Draw Lines of Symmetry |
Lesson 8: Problem Solving * Shape Patterns |
Chapter 10 Vocabulary
acute angle- an angle that has a measure less than a right angle
line- a straight path of points that continues without end in both directions
line of symmetry- what a shape has if it can be folded about a line so that its tow parts match exactly
obtuse angle- an angle that has a measure greater than a right angle
ray- a part of a line, with one endpoint, that is straight and continues in one direction
right angle- an angle that forms a square corner and has a measure of 90 degrees
straight angle- an angle in which two rays point in opposite directions so that they form a line
acute angle- an angle that has a measure less than a right angle
line- a straight path of points that continues without end in both directions
line of symmetry- what a shape has if it can be folded about a line so that its tow parts match exactly
obtuse angle- an angle that has a measure greater than a right angle
ray- a part of a line, with one endpoint, that is straight and continues in one direction
right angle- an angle that forms a square corner and has a measure of 90 degrees
straight angle- an angle in which two rays point in opposite directions so that they form a line