Use the Parallelogram Rule to Find the Magnitude of the Resultant

Multiple Choice

Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. Round to one decimal place.
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A) $298.5 \mathrm { lb }$
B) $536.7 \mathrm { lb }$
C) $610.0 \mathrm { lb }$
D) $346.6 \mathrm { lb }$