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- StudyBlue
- Wisconsin
- University of Wisconsin - LaCrosse
- Math For Elementary Teachers
- Math For Elementary Teachers 136
- Liss
- 10/03/16 A closer look at quadrilaterals

Zoe H.

What are two definitions of kites?

1. Two pairs of adjacent, congruent sides

2. Two distinct pairs of adjacent, congruent sides

What are two definitions of trapezoids?

1. @ least 1 pair of parallel sides

2. Exactly one pair of parallel sidesW

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What happens if definition of trapezoid is exactly one pair of parallel sides?

Rectangle can not b an isosceles trapezoid.

What is inclusive hierarchy?

Includes kites + trapezoids + more shapes,

What is the definition of kite in our textbook?

Inclusive definition, two pairs of adjacent + congruent sides

What is definition of trapezoid in our textbook?

@ least 1 pair of parallel sides

What is definition of isosceles trapezoid in textbook?

Both angles next to one of parallel sides have same size

What is parallelogram?

Trapezoid w/ both pairs of opposite sides parallel

What is a rectangle?

Parallelograms w/ right angles

What are common misconceptions?

An angle must have one horizontal ray

A right angle is an angle that points to the right

A segment is not diagonal if it is vertical or horizontal

A square is not a square if its base is not horizontal

If a shape has four sides, then it is a square

The only way a figure can b a triangle is if it is equilateral

The angle sum of quadrilateral is same as area

What if something has rounded corners?

It can not be a square

What is reflection symmetry?

Can fold shape in half

What are two types of symmetry?

1. Reflection

2. Rotation

What is Rotation?

Points on shape that can match w/ another

What is order?

# of rotations

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What is order of rotation for circle?

Infinity

What is symmetry?

Any movement that fits shape onto same set of points it started w/. Both rotational and reflectional.

Always, Sometimes, or Never True: A quadrilateral has at least two lines of symmetry?

Sometimes ture

In a rhombus do diagonals bisect each other?

Yes

In rectangle do diagonals bisect each other?

Yes

Do diagonals in a rectangle bisect angles?

No

Do diagonals in an isoceles trapezoid bisect each other?

No

Does N have reflectional symmetry?

No

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