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Presentation transcript:

Splash Screen

Five-Minute Check (over Lesson 13–3) Main Idea and Vocabulary Key Concept: Classifying Quadrilaterals Example 1: Describe Sides and Angles Example 2: Describe Sides and Angles Lesson Menu

I will identify characteristics of quadrilaterals. rectangle square parallelogram rhombus trapezoid Main Idea/Vocabulary

KC

Describe Sides and Angles Describe the congruent sides in the quadrilateral. Then state whether any sides appear to be parallel or perpendicular. Answer: Opposite sides are congruent and parallel. No sides are perpendicular. Example 1

Opposite sides are parallel and no sides are perpendicular. Describe the congruent sides in the quadrilateral. Then state whether any sides appear to be parallel or perpendicular. Opposite sides are parallel and no sides are perpendicular. Opposite sides are perpendicular but not parallel. No sides are perpendicular or parallel. Opposite sides are parallel and adjacent sides are perpendicular. A B C D Example 1

Describe Sides and Angles The design is made up of repeating quadrilaterals. Find the number of acute and obtuse angles. Answer: Each quadrilateral has two acute angles and two obtuse angles. Example 2

The design is made up of repeating quadrilaterals The design is made up of repeating quadrilaterals. Find the number of acute angles in each quadrilateral. 1 2 3 none A B C D Example 2

End of the Lesson End Lesson

Five-Minute Check (over Lesson 13–3) Image Bank Math Tool Chest Identify Angles Resources

Find the number of congruent sides in the triangle. (over Lesson 13–3) Find the number of congruent sides in the triangle. 1 side 2 sides 3 sides 0 sides A B C D Five Minute Check 1

Find the number of congruent sides in the triangle. (over Lesson 13–3) Find the number of congruent sides in the triangle. 1 side 2 sides 3 sides 0 sides A B C D Five Minute Check 2

Find the number of congruent sides in the triangle. (over Lesson 13–3) Find the number of congruent sides in the triangle. 1 side 2 sides 3 sides 0 sides A B C D Five Minute Check 3

Find the number of congruent sides in the triangle. (over Lesson 13–3) Find the number of congruent sides in the triangle. 1 side 2 sides 3 sides 0 sides A B C D Five Minute Check 4

Find the number of congruent sides in the triangle. (over Lesson 13–3) Find the number of congruent sides in the triangle. 1 side 2 sides 3 sides 0 sides A B C D Five Minute Check 5

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