The dimensions of a box are 10 in by 15 by 20. Each edge of the box will be fastened with tape. How many inches of tape are needed? Use make a drawing strategy
The box has 12 edges. 4 of each length. So, ...
180 in. Right???
To determine the amount of tape needed to fasten the edges of the box, we can use a strategy called "make a drawing". Here's how you can do it:
1. Visualize the box: Start by drawing a rectangular shape on a piece of paper to represent the box. Label the dimensions on each side: 10 inches for the length, 15 inches for the width, and 20 inches for the height.
_________
| |
| 10in |
|________|
15in
20in
2. Determine the edges: Identify the edges of the box that will need to be taped. In this case, there are 12 edges in total: 4 edges on the top face, 4 edges on the bottom face, and 4 vertical edges connecting the top and bottom faces.
3. Measure the length of each edge: Starting from one corner of the box, measure the length of each edge and write it down on your drawing.
_________
| 10in |
| |
|________|
15in
20in
4. Add up the lengths: Add up the lengths of all the edges. In this case, the lengths of the 12 edges are: 10 + 10 + 15 + 15 + 20 + 20 + 10 + 10 + 15 + 15 + 20 + 20 = 160 inches.
5. Double the total length: Since each edge needs to be taped on both sides, double the total length of the edges. In this case, 160 inches doubled is 320 inches.
Therefore, you would need 320 inches of tape to fasten all the edges of the box.