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PLS HELP:Find the side length, C.
Round to the nearest tenth.

PLS HELP:Find the side length, C. Round to the nearest tenth.-example-1

1 Answer

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Answer:


\huge\boxed{c = 14.9}

Explanation:

Using Cosine Rule


c^2 = a^2 + b^2 -2abCosC

Where a = 11 , b = 7 and C = 110


c^2 = (11)^2+(7)^2-2(11)(7)Cos 110


c^2 = 121+49-154 (-0.34)\\c^2 = 170+52.7\\c^2 = 222.7

Taking sqrt on both sides

c = 14.9

User Nathan Wiebe
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