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 all unmerciful actions, the worst of men pay this compliment at least to humanity, as to endeavour to wear as much of the appearance of it, as the case will well let them.”
    —Laurence Sterne (1713–1768)