Simple maths... Divide the 89 & 68 by 2, then multiply both of the answers together - OR multiply the 89 & 68 together, then divide that answer by 4 ! I'll leave you to do the calculations.
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Depends.Calculation 1:Imagine a room 11 feet x 14 feet.Now you have tiles 2 feet x 2 feet.If you want to know how many whole 2x2 tiles you can fit on the floor of the room and leave the rest without tiles (because 11 feet is an un-even dimension to the room)(round 11 down to 10)10/2 = 514/2 = 75 * 7 = 35 tiles.Calculation 2:If you want to know how many 2x2 tiles you would need to completely cover the floor (where you would cut the tiles)entire area of floor: 11 feet * 14 feet = 154 feet squaredarea of a single tile: 2 feet * 2 feet = 4 feet squared154 feet squared / 4 feet squared = 38.5 tiles.
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2x2 - 16x32 2x2=4-16= -12x32= -384