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If a right triangle has an area of 81 meters an a base of 9 meters its height is: 18 meters.
Area = (1/2) x base x height , so solve this for height; height = 2 x Area / base height = (2)(81)/(9) = 18
9² = 9 × 9 = 81
The square root of a square with side lengths of nine (9) is........................................................................................ 81! The formula is base(b) times height(h). So, 9 times 9 is 81.
9x9=81