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Lesson 1-6. Polygons. Ohio Content Standards:. Ohio Content Standards:. Formally define geometric figures. Ohio Content Standards:. Use coordinate geometry to represent and examine the properties of geometric figures. Ohio Content Standards:.

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Lesson 1-6

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Lesson 1 6

Lesson 1-6

Polygons


Ohio content standards

Ohio Content Standards:


Ohio content standards1

Ohio Content Standards:

  • Formally define geometric figures.


Ohio content standards2

Ohio Content Standards:

  • Use coordinate geometry to represent and examine the properties of geometric figures.


Ohio content standards3

Ohio Content Standards:

  • Make and test conjectures about characteristics and properties (e.g., sides, angles, symmetry) of two-dimensional figures and three-dimensional objects.


Vocabulary

Vocabulary


Vocabulary1

Vocabulary

Polygon:


Vocabulary2

Vocabulary

A closed figure formed by a finite number of segments

Polygon:


Vocabulary3

Vocabulary

A closed figure formed by a finite number of segments

Polygon:


Vocabulary4

Vocabulary

Concave:


Vocabulary5

Vocabulary

A polygon that “caves” in on itself.

Concave:


Vocabulary6

Vocabulary

A polygon that “caves” in on itself.

Concave:


Vocabulary7

Vocabulary

Convex:


Vocabulary8

Vocabulary

A polygon that does not “cave” in.

Convex:


Vocabulary9

Vocabulary

A polygon that does not “cave” in.

Convex:


Vocabulary10

Vocabulary

A polygon that does not “cave” in.

Convex:


Vocabulary11

Vocabulary

n-gon:


Vocabulary12

Vocabulary

A polygon with “n” sides.

n-gon:


Vocabulary13

Vocabulary

Regular Polygon:


Vocabulary14

Vocabulary

A convex polygon which all sides and angles are congruent.

Regular Polygon:


Polygons

Polygons:

Number of sides:


Polygons1

Polygons:

Number of sides:

triangle

3


Polygons2

Polygons:

Number of sides:

quadrilateral

4


Polygons3

Polygons:

Number of sides:

pentagon

5


Polygons4

Polygons:

Number of sides:

hexagon

6


Polygons5

Polygons:

Number of sides:

heptagon

7


Polygons6

Polygons:

Number of sides:

octagon

8


Polygons7

Polygons:

Number of sides:

nonagon

9


Polygons8

Polygons:

Number of sides:

decagon

10


Polygons9

Polygons:

Number of sides:

dodecagon

12


Lesson 1 6

Name each polygon by the number of sides. Then classify it as convex or concave, regular or irregular.


Lesson 1 6

Name each polygon by the number of sides. Then classify it as convex or concave, regular or irregular.


Lesson 1 6

Name each polygon by the number of sides. Then classify it as convex or concave, regular or irregular.


Vocabulary15

Vocabulary


Vocabulary16

Vocabulary

Perimeter:


Vocabulary17

Vocabulary

The sum of the lengths of the polygons sides.

Perimeter:


Lesson 1 6

A masonrycompany is contracted to lay three layers of decorative brick along the foundation for a new house given the dimensions below.


Lesson 1 6

A masonrycompany is contracted to lay three layers of decorative brick along the foundation for a new house given the dimensions below.

30 ft

30 ft

8 ft

36 ft

40 ft

12 ft

24 ft

36 ft


Lesson 1 6

A masonrycompany is contracted to lay three layers of decorative brick along the foundation for a new house given the dimensions below.

30 ft

30 ft

8 ft

36 ft

40 ft

12 ft

24 ft

36 ft

Find the perimeter of the foundation and determine how many bricks the company will need to complete the job. Assume one brick is 8 inches long.


Lesson 1 6

A masonrycompany is contracted to lay three layers of decorative brick along the foundation for a new house given the dimensions below.

30 ft

30 ft

8 ft

36 ft

40 ft

12 ft

24 ft

36 ft

The builder realizes he accidentally halved the size of the foundation, so he reworks the drawing with the correct dimensions. How will this affect the perimeter of the house and the number of bricks needed?


Lesson 1 6

Find the perimeter of pentagon ABCDE with A(0, 4), B(4, 0), C(3, -4), D(-3, -4), and E(-3, 1).


Lesson 1 6

Find the perimeter of pentagon ABCDE with A(0, 4), B(4, 0), C(3, -4), D(-3, -4), and E(-3, 1).


Lesson 1 6

The width of a rectangle is 5 less than twice the length. The perimeter is 80 centimeters. Find the length of each side.


Lesson 1 6

Assignment:

Pgs. 49 - 50

12-34 evens,

40-44 evens


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