90 inches = 7 feet 6 inches.
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There are 36 inches in one yard. Therefore, 90 inches is equal to 90/36 = 2.5 yards.
The area of a square is found by multiplying two of the equal sides together. A square has four equal sides and the four angles the sides make together are always equal to 90 degrees each. So, a square that is 10 inches by 10 inches has an area of 10 inches x 10 inches=100 square inches.
90 square inches is 0.0694 square yard.
Two angles that are equal to 90 degrees are Complimentary.
An angle with measure equal to 90 is called a right angle.