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You are missing one of the dimensions if you want to determine cubic feet. The square footage of a 3'x6' rectangle would be 18 sq ft. You simply multiply the two dimensions (assuming they are already the same unit of measure.) Lets say the rectangular prism is 3'x6'x3' the cubic feet would then be 90 cubic ft. The formula for cubic feet of a rectangular prism is 2ab+2bc+2ac. In this example the formula looks like this, 2(3x6)+2(6x3)+2(3x3)=90.
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What is the area of a rectangle that is 6 feet wide and 3 feet long?
A = LxW A = 3x6 A = 18 ft squared.
How do you calculate a rectangle's area?
Multiply the length by the wide. eg a 3cm x 6cm rectangle - 3x6=18sqcm The answer is in square units, - square feet, metres, mm etc
How many 3x6 tiles covers 32 square feet?
256 tiles
How many feet go into six yards?
3 feet in 1 yard. 3x6=18 feet in six yards.
How many 3X6 subway tiles will it take to cover 66 square feet?
1188
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