SOLUTION: The problem that i struggle with:
Given that angleC= 45 degree, a=20 and b=17. What is the length of side c in angleABC to the nearest tenth?
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Given that angleC= 45 degree, a=20 and b=17. What is the length of side c in angleABC to the nearest tenth?
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Question 600423: The problem that i struggle with:
Given that angleC= 45 degree, a=20 and b=17. What is the length of side c in angleABC to the nearest tenth? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Given that angleC= 45 degree, a=20 and b=17. What is the length of side c in angleABC to the nearest tenth?
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Use Law of cosines:
c^2=a^2+b^2-2abcosC
c^2=20^2+17^2-2*20*17cos45º
c^2≈331.78
c=√331.78≈18.2
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