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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

Lesson 1-6

Polygons



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.



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.



Vocabulary16
Vocabulary as

Perimeter:


Vocabulary17
Vocabulary as

The sum of the lengths of the polygons sides.

Perimeter:


Lesson 1 6

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


Lesson 1 6

A masonry as company 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 masonry as company 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 masonry as company 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 as 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 as 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: The perimeter is 80 centimeters. Find the length of each side.

Pgs. 49 - 50

12-34 evens,

40-44 evens