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A calculator gives 2.15 x pi as 6.7544242 Round this number to the correct number of significant digits?
Wiki User
∙ 13y ago
Well, we usually know PI as equal to 3.1415926535.
Therefore, this number multiplied is equal to 6.754424205025.
The "correct number of significant digits" really depends on what you're going to do. If it's some high presision laser cutter, I'd use the first 100 digits of PI. You're probably not doing that, so 6.754 is enough.
Wiki User
∙ 13y ago
Anonymous
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