The equation SA=6s2 can be used to calculate the surface area, SA, of a cube with side length 3. What is the surface area, in square meters, of a cube with a side length of 0.5 meter?​

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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.