In the US, residential area is almost always measured in square feet. However, sometimes square inches are used when tiling small areas, such as bathroom showers, etc.
yes ft^2 or sq ft
square inches
You are asking for square footage, but you are giving enough information for a measure of volume in cubic inches. Given a regular rectangular shape, 48 inches by 42 inches would give you 2016 square inches. Multiplying this by 38 inches would give you 76,608 cubic inches.
A tape measure would be the tool, measuring in centimetres or inches.
inches in customary units
You would probably measure a keyboard in centimeters (cm).
Multiply the height by the width Area = length x width or (height x width in this case)
You would use square inches if you were trying to measure the area of a 2D shape.
square inches
You are asking for square footage, but you are giving enough information for a measure of volume in cubic inches. Given a regular rectangular shape, 48 inches by 42 inches would give you 2016 square inches. Multiplying this by 38 inches would give you 76,608 cubic inches.
5 inches.
No. 12 inches by 12 inches = 144 square inches. To get 150 square inches from a roll 12 inches wide, you would need to buy 12.5 inches. That would measure exactly 150 square inches.
Probably cubic inches. Gallons would be possible.
Because area is 2-dimensional.
1 square of shingles is 100 square feet. There are 144 square inches in each square foot so there would be 14,400 sq. inches in a square. 12x12=144x100=14,400
To measure a square foot, you would need to measure a space that is one foot in length and one foot in width. This can be done using a measuring tape or ruler. Start from one end and measure 12 inches, then move horizontally and measure another 12 inches perpendicular to the first measurement. The resulting area would be one square foot.
Gallons is a liquid measurement and inches is a solid measurement so there is no such thing as inches in a gallon but there is square inches in a gallon which is completely diffrent. Cubic inches measure volume so a gallon would be measured in cubic inches rather than square inches. 231 cubic inches is equal to one gallon. Answer2 The first para in the above answer is confusing because it says "there is square inches in a gallon". Unfortunately, there are NOT square inches in a gallon - they are CUBIC inches (a measure of volume, not area)
85 square feet is the area of a room that measures eight by ten and a half feet. This is the size of a typical second bedroom. If there was a floor tile that measured 12 inches by 12 inches, this would be 85 floor tiles.
A radius is used to measure a circle; squares do not have a radius, they would be measured by a side. If a square has a side that measures 6 inches, then it's area is 36 square inches. Note that without a unit of measurement (inches, or whatever it is) you do not have a meaningful answer.