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1. An aquarium is in the shape of a cuboid. It is 80cm long and 60 cm wide.It is
filled with water of depth 30 cm originally . 0.096m3 water is now poured into
it . Find the rise in water level in cm.
2. A swimming pool is 50m long ,20m wide and 2m deep.In the coming renovation,we need to cover all the pool with new tiles.Find the total surface area of tiles to be used.
F.1 Mathematics
2010-05-07 9:59 pm
回答 (2)
2010-05-07 10:15 pm
✔ 最佳答案
1.(0.096x100x100x100)÷(80x60)=20cm2.50x2x2+20x2x2+50x20=1280m2
2010-05-07 14:18:57 補充：
1.先將m3變番做cm3,再除底面積
2.將5面既面積加哂佢就係答案
2010-05-07 10:06 pm
1.the rise in water level=20cm
2010-05-07 14:08:19 補充：
2.the total surface area of tiles to be used=1280m²
2010-05-07 14:08:19 補充：
2.the total surface area of tiles to be used=1280m²
收錄日期: 2021-04-13 17:13:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100507000051KK00534