The question is an illustration of the laws of cosine, the length of the third side is 6.7 units
How to determine the third side?
The measure of the third side is calculated using the following law of cosine
a^2 = b^2 + c^2 - 2bc * cos(A)
So, we have:
a^2 = 8^2 + 11^2 - 2 * 8 * 11 * cos(37)
Evaluate the expression
a^2 = 44.44
Take the square root of both sides
a = 6.7
Hence, the length of the third side is 6.7 units
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