Cosine

Cosine and sine theorem:
Calculate all unknown values (sides and angles) of the triangle ABC.

a = 20 cm; b = 15 cm; γ = 90°; c =? cm; α =? °; β =? °

Your answer:

cm
°
°


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You need to know the following knowledge to solve this word math problem:

algebraarithmeticplanimetrygoniometry and trigonometryUnits of physical quantitiesGrade of the word problem

 
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