An inch is EXACTLY 2.54 centimetres. You do the math.
20inches
20inches
25% increase.
A ruler is generally twelve inches long. 1 2/3 rulers should be about 20 inches.
20 inches = 50.8 cm
20inches
The area is 314.2 square inches.
20 inches x 28 inches is 3,612.896 square centimeters.
You add up the lengths of every side. For example, if you have a pentagon (five sided figure) and every side is 4 inches long, you add 4+4+4+4+4=20inches.
18.15 in x 32 in x 20 in = 11840 in3
It depends upon the temperature of the water, the temperature of the container and the temperature of the atmosphere.
Multiply width by length to get the area. The answer would be 800 square inches and 5.56 square feet.