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88.69 Two intuitive proofs of Heron's formula
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- Journal:
- The Mathematical Gazette / Volume 88 / Issue 513 / November 2004
- Published online by Cambridge University Press:
- 01 August 2016, pp. 546-548
- Print publication:
- November 2004
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82.31 A geometrical proof of a trigonometric inequality
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- Journal:
- The Mathematical Gazette / Volume 82 / Issue 494 / July 1998
- Published online by Cambridge University Press:
- 01 August 2016, pp. 278-280
- Print publication:
- July 1998
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- Article
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