The answer depends on the units used for 16 and 20. It should be blindingly obvious to anybody that 16 ft x 20 ft and 16 cm x 20 cm, for example, will give very different answers.
320 square inches
16" x 20" = 320 square inches
320 square inches
16x20
320
There are 144 square inches in a square foot. This calculates out to be 5,040 square inches.
6 inches on each side. To get square inches of a square you multiply length by width. So, 6 inches by 6 inches = 36 square inches.
320 square inches
2
16x20
3,444.45133 square feet.
16x20
320
36,000 square inches.36,000 square inches.36,000 square inches.36,000 square inches.
There are 144 square inches in a square foot. This calculates out to be 5,040 square inches.
136 square inches.136 square inches.136 square inches.136 square inches.
6 inches on each side. To get square inches of a square you multiply length by width. So, 6 inches by 6 inches = 36 square inches.
One square foot would be 12 inches by 12 inches, or 144 square inches. This means to convert square feet to square inches, multiply the number of square feet by 144 to to get the number of square inches.
To convert square inches to square yards, divide square inches by 1,296.