Transparency 4 Click the mouse button or press the Space Bar to display the answers.
-
Upload
lorraine-gray -
Category
Documents
-
view
214 -
download
0
description
Transcript of Transparency 4 Click the mouse button or press the Space Bar to display the answers.
![Page 1: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/1.jpg)
Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.
![Page 2: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/2.jpg)
![Page 3: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/3.jpg)
Name the polygon by its number of sides. Then classify it as convex or concave, regular or irregular.
There are 4 sides, so this is a quadrilateral.
No line containing any of the sides will pass through the interior of the quadrilateral, so it is convex.
The sides are not congruent, so it is irregular.
Answer: quadrilateral, convex, irregular
![Page 4: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/4.jpg)
Name the polygon by its number of sides. Then classify it as convex or concave, regular or irregular.
There are 9 sides, so this is a nonagon.
A line containing some of the sides will pass through the interior of the nonagon, so it is concave.
The sides are not congruent, so it is irregular.
Answer: nonagon, concave, irregular
![Page 5: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/5.jpg)
Answer: triangle, convex, regular
Answer: quadrilateral, convex, irregular
Name each polygon by the number of sides. Then classify it as convex or concave, regular or irregular.
a.
b.
![Page 6: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/6.jpg)
CONSTRUCTION A masonry company is contracted to lay three layers of decorative brick along the foundation for a new house given the dimensions below. Find the perimeter of the foundation and determine how many bricks the company will need to complete the job. Assume that one brick is 8 inches long.
![Page 7: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/7.jpg)
First, find the perimeter.
Add the lengths of the sides.
The perimeter of the foundation is 216 feet.
![Page 8: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/8.jpg)
Next, determine how many bricks will be needed to
complete the job. Each brick measures 8 inches, or foot.
Divide 216 by to find the number of bricks needed for
one layer.
Answer: The builder will need 324 bricks for each layer. Three layers of bricks are needed, so the
builder needs 324 • 3 or 972 bricks.
![Page 9: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/9.jpg)
Find the perimeter of pentagon ABCDE with A(0, 4), B(4, 0), C(3, –4), D(–3, –4), and E(–3, 1).
![Page 10: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/10.jpg)
Use the Distance Formula, ,
to find AB, BC, CD, DE, and EA.
![Page 11: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/11.jpg)
Answer: The perimeter of pentagon ABCDE is
or about 25 units.
![Page 12: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/12.jpg)
Find the perimeter of quadrilateral WXYZ with W(2, 4), X(–3, 3), Y(–1, 0), and Z(3, –1).
Answer: about 17.9 units
![Page 13: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/13.jpg)
The width of a rectangle is 5 less than twice its length. The perimeter is 80 centimeters. Find the length of each side. Let represent the length. Then the width is .
![Page 14: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/14.jpg)
Perimeter formula for rectangle
Multiply.
Simplify.
Add 10 to each side.
Divide each side by 6.
Answer:
The length is 15 cm. By substituting 15 for , the width becomes 2(15) – 5 or 25 cm.
![Page 15: Transparency 4 Click the mouse button or press the Space Bar to display the answers.](https://reader035.fdocuments.net/reader035/viewer/2022070616/5a4d1bed7f8b9ab0599e4bc1/html5/thumbnails/15.jpg)
The length of a rectangle is 7 more than five times its width. The perimeter is 134 feet. Find the length of each side.
Answer: