What formulas for sines and cosines can be used to find the sides of a triangle?
| January 2, 2021 | education
cosine theorem: the square of the side of a triangle is equal to the sum of the squares of the other two sides without doubling them by the cosine of the angle between them.
a ^ 2 = b ^ 2 + c ^ 2 – 2bc * cosα
sine theorem: the sides of a triangle are proportional to the sines of the opposite angles.
a / sinA = b / sinB = c / sinC
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