Let's work through each question step by step based on the information you provided.
Question 1a
Mia wants the length of the shelter to measure 3.25 feet. First, let's convert 3.25 feet into inches:
\[ 3.25 \text{ feet} = 3.25 \times 12 \text{ inches} = 39 \text{ inches} \]
Now we check which board is suitable for the length of 39 inches. The available boards are:
- Board 1: 36 inches
- Board 2: 39 inches
- Board 3: 42 inches
Mia will use Board 2 that measures 39 inches for the length of the shelter.
Question 1b
The width of the shelter must be shorter than the length. Since she is using 39 inches (3.25 feet) for the length, she can use either of the remaining boards (36 inches or 42 inches). However, both the 36-inch board is shorter than the length option:
\[ 36 \text{ inches} = 3 \text{ feet} \]
Thus, the width of the shelter should be 3 feet.
Question 1c
Mia needs to cut the third board (which measures 42 inches) to match the width of the shelter (36 inches). To find out how much she needs to cut off:
\[ 42 \text{ inches} - 36 \text{ inches} = 6 \text{ inches} \]
Convert 6 inches to feet:
\[ 6 \text{ inches} = 0.5 \text{ feet} \]
So, Mia will need to cut off 6 inches or 0.5 feet.
Question 1d
For the roof, Mia has three options:
-
1 square yard: Convert this to square feet (since 1 yard = 3 feet):
\[ 1 \text{ square yard} = 3 \text{ feet} \times 3 \text{ feet} = 9 \text{ square feet} \]
-
3 feet by 3 feet: Calculate the area:
\[ 3 \text{ feet} \times 3 \text{ feet} = 9 \text{ square feet} \]
-
36 inches by 36 inches: Convert to feet (since 36 inches = 3 feet):
\[ 3 \text{ feet} \times 3 \text{ feet} = 9 \text{ square feet} \]
Each of the boards covers 9 square feet. Therefore, all of these boards (the board measuring 1 square yard, the board measuring 3 feet by 3 feet, and the board measuring 36 inches by 36 inches) will cover all the space needed for the roof.
Summary of Answers:
- Board 2 that measures 39 inches (for the length).
- 3 feet (for the width).
- 6 inches or 0.5 feet (to cut off the board).
- The board measuring 1 square yard, The board measuring 3 feet by 3 feet, and The board measuring 36 inches by 36 inches will all work.