Polygons
Quadrilaterals
Share your understanding
What Am I?
T or F
100
What has 7 sides and is a closed figure?
a heptagon
100
A quadrilateral that has all sides congruent and 4 right angles is called a _______________________
square
100

What does congruent mean?

Same size, same shape. Equal.

100
I am a closed figure with 3 or more sides and I have all equal sides and equal angles
any regular polygon or regular polygon
100
All polygons have lines of symmetry
False, not all polygons have lines of symmetry i.e. scalene triangle or irregular polygons
200
Polygons are named depending on the number of _______ and ________ they have
sides and vertices/angles
200
Parallelogram, rhombus, rectangle and square share what characteristics. Name 2 charcteristics
4 sides 2 pairs of parallel sides (opposite) congruent opposite sides
200

Draw a pentagon. Draw as many lines from one vertex to its opposite vertices as possible. How many triangles did you make?

3 triangles

200
I have 3 sides and one line of symmetry
isosceles triangle
200
Hatch marks are used to indicate parallel lines
False
300
A polygon that has all equal side lengths and equal angles and lines of symmetry is called a __________________________________
any regular polygon or regular polygon
300
A rhombus has one pair of parallel lines. Always, sometimes or never?
Never
300

Explain the four properties of a parallelogram. (Hint: 7-2)

Opposite sides are parallel. Opposite sides are congruent. Opposite interior angles are congruent. Consecutive angles are supplementary.

300
I have congruent opposite sides and four right angles
square, rectangle
300
Daily Double (DOUBLE THE POINTS LISTED BELOW!) According to our defintions, a rectangle has congruent opposite sides, opposite parallel sides and 4 right angles. A square is also a rectangle.
True, squares share the same characteristics. Opposite sides are congruent, opposite sides are parallel and it has 4 right angles.
400

A million sided polygon is called a _____________

megagon / 1,000,000-agon

400
A square is always, sometimes or never a parallelogram?
Always, because opposite sides are congruent and opposite sides are parallel
400

How do you find the length of a midsegment in a trapezoid?

Midsegment=1/2(b1+b2)

400
I have two pairs of equal sides. I do not have parallel sides.
A kite or irregular quadrilateral
400
All trapezoids have one line of symmetry
False. Not always, if sides are different lengths, than no.
500
DAILY DOUBLE (DOUBLE THE LISTED POINTS BELOW!)How many lines of symmetry will a regular pentagon have?
Five
500
Rectangle ABCD has a total perimeter of 16cm. If side AB and it's opposite side CD are conrguent at 6cm long, what is the length of sides AC and BD?
2cm
500

For which kind of parallelograms are the diagonals perpendicular? What do you think these parallelograms have in common?

Rhombus and Square. They both have four congruent sides

500

I have 6 sides and only some of my sides are the same length.

irregular hexagon

500
According to our definitions, a rectangle is also a square.
False. Although rectangles share the same characteristics as a square in terms of having 4 right angles, opposite sides parallel; rectangles do not have all sides being congruent i.e. 4 equal sides
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