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2 ways.

multiply each then divide by 9.

13.666667 x 6.583333 = 90

90 ÷ 9 = 10 yd2

or

convert to inches, multiply, then divide by 1296

13 x 12 + 8 = 164

6 x 12 + 7 = 79

164 x 79 = 12956

12956 ÷ 1296 = 10

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13y ago

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