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Find the lengths a, b, c, and d in the following f...

Find the lengths a, b, c, and d in the following figure:

| <-----------------2cm-----------------------|<------d-------|

Leave your answers in terms of trigonometric functions.

1 Answers

Answers ( 1 )

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First find PQ and QR. For PQ, use the right-triangle:

,so

For QR, first find its opposite angle to be .
Now using the law of sines:

,thus .

Therefore:

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