Nearby Words

hero formula

[heer-ohz]

Hero's formula

[heer-ohz]
noun Geometry.
the formula for the area of a triangle when the sides are given: for a triangle with sides a, b, and c, the area is equal to , where s is equal to one half the perimeter of the triangle.

Origin:
named after Hero of Alexandria
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Hero formula is always a great word to know.
So is ort. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a scrap or morsel of food left at a meal.
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