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Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Fractions: If you’ve ever had difficulty with fractions, using a tape measure just ...

So you have a circle. What is the area of that circle? Surely everyone remembers that the area of a circle is: Where Pi (π) is of course the number and r is the radius of the circle. Where does this ...

Tape measures typically consist of a long flexible steel blade (the tape) coiled inside a plastic or metal case with a spring mechanism to retract the tape after being extended. While the markings can ...