catgirl17
triangle ABC is aright triangle. find sin A and the measure of angle A to the nearest degree.
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catgirl17
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|dw:1337520865562:dw|
pfenn1
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\[\sin A = \frac {opp}{hyp} \]
catgirl17
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wouldn't i do the sin- since i don't have the angle for A
ParthKohli
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You don't need to have the angle to find the sin of A. Sin of A would be its opposite side over the hypotenuse.
catgirl17
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oh okay then
ParthKohli
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Determining angle A won't really help.
pfenn1
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You are right. You don't have the angle, you are going to calculate that just like you said with sin-, but you do have the lengths of the side opposite angle A and the hypotenuse.
ParthKohli
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\(\Huge \sin A = {20 \over 29}\)
catgirl17
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is the answer 44 degree
pfenn1
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Yes.