Which Of These Is Equal To Sin 21°? A) Cos 21° B) Cos 69° C) Sin 69° D) Tan 69°

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B because 69° Is Equal To Sin 21°.
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A flagpole is 50 feet from a point on the ground. The angle of depression from the top of the flagpole to the same point on the ground is 40°. Calculate the height of the flagpole to the nearest foot.

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