Problem 81 of 7
Use trig area formula in context a ship's course forming a triangle with sides 20 nautical miles and 25 nautical miles and an included angle of 45 degrees.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
model triangular region with two sides and included angle.
Hidden until you reveal it.
Model triangular region with two sides and included angle in land, design, or navigation contexts.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the two sides that include the known angle.
2. Substitute into A=1/2ab sin(C).
3. Interpret result in square units.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using perimeter or non-included angle.