How do I calculate my font size?

Related questions

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2. What size font equals 3 inches?
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5. How do I print large font size?
6. What is EM width?
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1. #declared
2. #whereas
3. #equal
4. #helvetica
5. #submultiples
6. #variable
7. #point
8. #measure
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10. #multiples
11. #talking
12. #convenience