Trigonometry:
In triangle ABC, Angle A = 39 degrees., altitude BH has a length of 11 cm, and side AC has a length of 19 cm. Determine the length of BC
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Answer:
12 cm
Step-by-step explanation:
Find x and H in the right triangle below. ... The lengths of side AB and side BC of a scalene triangle ABC are 12 cm ... solve for x and substitute HC: x = √ [ 11 2 + (19 - 11 / tan(39°) ) 2 ]
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