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Published byHayden Babcock Modified over 2 years ago

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How do you know when a shape is a rhombus? Are you a rhombus?

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In this lesson you will learn to identify specific kinds of quadrilaterals by looking at their attributes.

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Let’s Review QuadrilateralNOT a Quadrilateral A quadrilateral is a polygon with 4 sides and 4 angles.

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Let’s Review Core Lesson There are two main kinds of quadrilaterals 2 Sets of Parallel Sides 1 or less sets of parallel sides rectangle square parallelogram rhombus non-specific quadrilateral trapezoid

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Let’s Review Core Lesson Quadrilaterals with 2 sets of parallel sides: square rectangle parallelogram rhombus 2 sets of parallel sides 2 pairs of congruent sides 2 sets of parallel sides 2 pairs of congruent sides 4 right angles 2 sets of parallel sides 4 congruent sides 4 right angles 2 sets of parallel sides 4 congruent sides

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Let’s Review Core Lesson Quadrilaterals with 1 or less sets of parallel sides: trapezoid non-specific quadrilateral isosceles trapezoid 1 set of parallel sides 1 pair of congruent sides 4 sides

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Let’s Review A Common Mistake Trying to name all unknown quadrilaterals as parallelograms or trapezoids. non-specific quadrilateral

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Let’s Review Core Lesson Which of these shapes is a rhombus? A rhombus has: 2 sets of parallel sides 4 congruent sides X X 3 units

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In this lesson you have learned to identify specific kinds of quadrilaterals by looking at their attributes.

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Let’s Review Guided Practice Anthony made a frame in art class. The frame has four sides that are two different lengths, and the opposite sides are parallel. The frame has four right angles. Which shape is the frame?

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Let’s Review Extension Activities Pick two quadrilaterals. Describe the similarities and differences between the two shapes. Example: Describe the similarities and differences between a trapezoid and a parallelogram.

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Let’s Review Extension Activities Pick a quadrilateral. Draw as many different shapes as you can that could be classified as that quadrilateral. Example: Draw as many different parallelograms as you can think of.

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Let’s Review Quick Quiz Describe how you know when a shape is a rectangle. Tara was standing in front of her house when she noticed the shape of the attic window. The window had exactly one set of parallel sides. Which polygon is the window shaped like?

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