What is the second step when you construct a copy of a line segment

The second step for copying a line segment is to set the compass to the length of the line segment to be copied.

When copying a line segment, you must first create your starting point.

Then, you need to set your compass to the length of the line segment to be copied. 

Finally, you can make an arc and finish your line segment.

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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.