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Find angle A in the following triangle.

Find angle A in the following triangle.
right triangle with acute angle A and side opposite A equal to 5 and side adjacent to A equal to 7

asked Sep 19, 2014 in TRIGONOMETRY by tonymate Pupil

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Best answer

The right triangle sides are 7 and 5.

tan A = Opposite side/ Adjacent side

tanA = 5/7

tanA = 0.71428

A = tan^-1 (0.71428)

A = 35.537

A = 35.54°

Option A is correct .

answered Sep 19, 2014 by david Expert
selected Sep 19, 2014 by tonymate

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