Law of Cosines - Isosceles Case

Isosceles Case

When a = b, i.e., when the triangle is isosceles with the two sides incident to the angle γ equal, the law of cosines simplifies significantly. Namely, because a2 + b2 = 2a2 = 2ab, the law of cosines becomes

or

Read more about this topic:  Law Of Cosines

Famous quotes containing the word case:

    “In the case of pirates, say, I would like to know whether that profession of theirs has any peculiar glory about it. It sometimes ends in uncommon elevation, indeed; but only at the gallows.”
    —Herman Melville (1819–1891)