Multiply width by length to get the area. The answer would be 187 square inches.
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Area = (pi) x (1/2 of the diameter)2 11-inch diameter ==> 95.033 square inches of area (rounded)
Note that "11 inches squared" means 11 x 11 or 121 square inches. 11 square inches would be 70.97 square centimeters (1 square inch = 6.4516 square centimeters) 121 square inches would be 780.64 square centimeters.
Area of rectangle: 9 times 11 = 99 square inches
It is: pi*5.52 = 95.033 square inches to 3 decimal places
assuming 11in x 13in = 24 square inches. math says: 11 + 13 = 24