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You need 100 12 by 12 inch stones to cover a 10 x 10 foot patio. Since the area of the patio is 10' by 10' = 100 square feet, and each stone is 1 foot * 1 foot = 1 square foot, 100 square feet divided by 1 square foot = 100.
You'll need 81 16 by 16 inch blocks.12 ft = 144 in144 in * 144 in = 20736 in216 in * 16 in = 256 in220736 in2 / 256 in2 = 81
132
144
12 time 12 inches = 1 square foot (as there are 12 inches in a foot) 10 times 8 feet = 80 square feet 80 square feet divided by 1 square foot = 80 pavers.
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One hundred and thrirty five
You need 100 12 by 12 inch stones to cover a 10 x 10 foot patio. Since the area of the patio is 10' by 10' = 100 square feet, and each stone is 1 foot * 1 foot = 1 square foot, 100 square feet divided by 1 square foot = 100.
You'll need 81 16 by 16 inch blocks.12 ft = 144 in144 in * 144 in = 20736 in216 in * 16 in = 256 in220736 in2 / 256 in2 = 81
132
144
square feet
12 x 12 blocks (assumed as 12 inch x 12 inch) That means the blocks are 1 square foot each Hence to cover 240 square feet area, you would need 240 blocks
12 time 12 inches = 1 square foot (as there are 12 inches in a foot) 10 times 8 feet = 80 square feet 80 square feet divided by 1 square foot = 80 pavers.
One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
A 12 x 12 inch brick is 1 square foot. A 20 x 20 (foot) patio is 400 square feet, so you would need 400 bricks.. this assumes you are butting the bricks fairly tight, not leaving large seperations between them, etc...