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How do i work this out i dont understand it

How do i work this out i dont understand it-example-1

1 Answer

5 votes

Answer:

37

Explanation:

we know that:

C=?

c=17

b=26

a=14

using the law of cosine:


a^(2) +b^(2) -2ab Cosc=c^(2)


14^(2) +26^(2) -2(14)(26)Cosc=17^(2) \\872-728Cosc=289\\-728Cosc=-583\\Cosc=(-583)/(-728) \\C=36.791\\C=37

User Anirudh Bandi
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