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primary 6 | Maths
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Can I ask why for b I must - 2? I dont understand how come b must do like that.
Date Posted: 1 year ago
Views: 165
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This is because the cuboid is painted outside, those not painted are inside the cuboid. Need to exclude cubes at the extreme ends, in the case of 60cm will be the left and right of the 60cm. Likewise for the breadth and height of the cuboid.
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