Isosceles triangle and cosine
Using the cosine theorem, prove that in an isosceles triangle ABC with base AB, c=2a cos α.
Correct answer:
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Calculation of an isosceles triangle.
Cosine rule uses trigonometric SAS triangle calculator.
See also our trigonometric triangle calculator.
Cosine rule uses trigonometric SAS triangle calculator.
See also our trigonometric triangle calculator.
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planimetricsgoniometry and trigonometryUnits of physical quantitiesthemes, topicsGrade of the word problem
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