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Earn +20 ptsQ: Is 81 prime
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Continue Learning about Geometry
What is the supplement of a 99 degree angles?
180 - 99 = 81 degrees.
Why is 81 a perfect square?
Because 9*9 = 81
What is the area of a square if it is 9ft by 9ft?
81 square feet (9 x 9 = 81).
What is the volume of a right rectangular prism that is 3 meters by 4.5 meters by 6 meters?
It is: 3*4.5*6 = 81 cubic meters
How many square feet are in 81 square yards?
729 square feet in 81 square yards.
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