Math Problem Statement
To create the flower gardens, Wendell bought six pieces of wood. Pieces A and B are 6 feet long, pieces C and D are 8 feet long, piece E is 3 feet long, and piece F is 2 feet long. Part A Can Wendell make a triangular garden using pieces A, B, and F? Why or why not?
Part B Can Wendell make a triangular garden using pieces D, E, and F? Why or why not?
Part C Can Wendell make a rectangular garden with the pieces of wood he has? If yes, which pieces can he use?
Part D Describe how Wendell can use all six pieces of wood to create either two rectangular gardens or two triangular gardens. Assume the gardens do not share a common side.
Part E Wendell’s dog, Jordan, was getting in his way as he worked in the backyard. So, Wendell chained him to a pole. If the chain is 12 feet long, about how much area does Jordan have to walk around?
Solution
Let's go through each part step by step.
Part A
Question: Can Wendell make a triangular garden using pieces A, B, and F? Why or why not?
To form a triangle, the sum of the lengths of any two sides must be greater than the length of the third side. We can use the triangle inequality theorem to check:
- Pieces A and B are 6 feet each, and piece F is 2 feet.
Let's check the inequalities:
- (True)
- (True)
- (True)
Since all inequalities are satisfied, Wendell can make a triangular garden using pieces A, B, and F.
Part B
Question: Can Wendell make a triangular garden using pieces D, E, and F? Why or why not?
Using the triangle inequality theorem:
- Pieces D is 8 feet, E is 3 feet, and F is 2 feet.
Check the inequalities:
- (True)
- (True)
- (False)
Since is not greater than , Wendell cannot make a triangular garden using pieces D, E, and F.
Part C
Question: Can Wendell make a rectangular garden with the pieces of wood he has? If yes, which pieces can he use?
To make a rectangular garden, opposite sides need to be of equal length.
- Pieces available: 6 feet (A), 6 feet (B), 8 feet (C), 8 feet (D), 3 feet (E), 2 feet (F).
Wendell can make a rectangular garden using pairs of equal-length pieces:
- Use pieces A (6 feet) and B (6 feet) for the shorter sides.
- Use pieces C (8 feet) and D (8 feet) for the longer sides.
Thus, Wendell can make a rectangular garden using pieces A, B, C, and D.
Part D
Question: Describe how Wendell can use all six pieces of wood to create either two rectangular gardens or two triangular gardens. Assume the gardens do not share a common side.
Option 1: Two rectangular gardens
-
First rectangular garden:
- Pieces A (6 feet) and B (6 feet) for the shorter sides.
- Pieces C (8 feet) and D (8 feet) for the longer sides.
-
Second rectangular garden:
- This is not possible with the remaining pieces E (3 feet) and F (2 feet).
Option 2: Two triangular gardens
-
First triangular garden:
- Pieces A (6 feet), B (6 feet), and F (2 feet) (as checked in Part A).
-
Second triangular garden:
- Pieces C (8 feet), D (8 feet), and E (3 feet).
Check the inequalities for the second triangle:
- (True)
- (True)
- (True)
Since all inequalities are satisfied, the second triangular garden is possible.
Thus, Wendell can create two triangular gardens using pieces A, B, F for the first, and C, D, E for the second.
Part E
Question: If the chain is 12 feet long, about how much area does Jordan have to walk around?
Jordan, being chained to a pole with a 12-foot chain, can walk around in a circle with a radius of 12 feet. The area of a circle is given by .
So, the area is:
Thus, Jordan has about 452.16 square feet to walk around.
Do you want details or have any questions about these explanations?
Suggested Questions:
- How do you find the area of more complex shapes?
- Can you explain more about the triangle inequality theorem?
- How would you approach a problem involving more than three sides?
- What other shapes can you make with different lengths of pieces?
- How can you use different methods to calculate area and perimeter?
Tip:
When checking the feasibility of forming a shape, always ensure to use geometric properties and theorems, like the triangle inequality theorem, to verify the possibility of the structure.
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Math Problem Analysis
Mathematical Concepts
Geometry
Triangle Inequality Theorem
Rectangle Properties
Circle Area
Formulas
Triangle Inequality Theorem
Area of a Circle
Theorems
Triangle Inequality Theorem
Suitable Grade Level
Grades 7-9
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