To calculate the total feet in 90 x 63, you would multiply the two numbers together. 90 x 63 = 5670. This result is in terms of a quantity, not a measurement of feet. To convert this quantity into feet, you would need additional information about what is being measured.
63 sq feet
21 x 3 yards/foot = 63 feet
If that's 12 x 90 feet, it's 1080 square feet. If that's 12 x 90 inches, it's 7.5 square feet.
7/10 x 90 = 63
90
Multiply 90 x .63= 56.7 is 63% of 90
90 x 7 = 630 sq ft
63 sq feet
1,449 square feet.
2,079
90 x 130 = 11,700 square feet.
150 x 90 = 13,500 square feet
There are: 90*49.5 = 4455 square feet
There are 63*3 = 189 feet in 63 yards, since there are 3 feet in a yard.
47' x 63' = 2,961 square feet.
For a circle of 20 feet diameter, its perimeter equals Pai x diam = 3.14 x 20 feet equals 62.80 feet around 63 feet.
Expressed as a percentage, 63/90 x 100 = 70 percent.