According to the "3-4-5" law of right triangles, if the two sides of the triangle are 3 units and 4 units, the hypotenuse must be 5 units.
So a diagonal must be 15 inches. The sides are 3 * 3 and 3 * 4, so the diagonal is 3 * 5.
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If we let the short side = w, then the long side is w+2. Two lots of the long plus two lots of the short = 46": 2w + 2*(w + 2) = 46 w = 10.5" So the short side is 10.5", the long side is 12.5".
A rectangular prism that is 5 centimeters wide, 10 centimeters long and 4 centimeters high has a volume of 200cm3
Whoever it was who discovered that if you had a square whose sides were one unit long, the lengths of its diagonals were sqrt(2) - surds!
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