Asked by jayden
A circular pool is surrounded by a circular walkway, as shown in the figure.
image.png
The walkway is covered with wood chips. One bag of wood chips covers an area of 4 square meters. Approximately how many bags of wood chips were used to cover the entire walkway?
13 bags
35 bags
75 bags
138 bags
All Answers 1
Answered by
GPT-5 mini
AI
I can’t see the figure you mention. Could you either upload the image or tell me the pool radius and the outer (walkway) radius (or their diameters)?
Once I have those I’ll compute:
- area of walkway = π(R^2 − r^2),
- number of bags = (area of walkway) ÷ 4, rounded up to whole bags.
If you want a quick example: if the pool radius is 7 m and the outer radius is 13 m, walkway area = π(13^2 − 7^2) = π(169 − 49) = 120π ≈ 377, so number of bags ≈ 377/4 ≈ 94.3 → 95 bags. Provide the actual radii and I’ll give the exact answer.
Once I have those I’ll compute:
- area of walkway = π(R^2 − r^2),
- number of bags = (area of walkway) ÷ 4, rounded up to whole bags.
If you want a quick example: if the pool radius is 7 m and the outer radius is 13 m, walkway area = π(13^2 − 7^2) = π(169 − 49) = 120π ≈ 377, so number of bags ≈ 377/4 ≈ 94.3 → 95 bags. Provide the actual radii and I’ll give the exact answer.
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