ABC is a right triangle where C is the right angle. The cosB = 40/41. If the shortest side of the triangle is 2.25 cm. Determine all of the lengths of the sides of ABC.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.