College Math CLEP Prep Practice Exam 2025 – The All-in-One Guide to Master Your Exam!

Question: 1 / 400

If three lines intersect at a single point, what angle do they form?

135 degrees

180 degrees

When three lines intersect at a single point, they form a total of 180 degrees. This is because each of the three lines creates an angle on either side of the intersection, with the total of all angles being 360 degrees. To find the measure of the angle they form, you simply divide 360 by the number of lines, which in this case is three, resulting in 120 degrees. However, since we are looking for the angle formed at the intersection point, we need to divide the 120 degrees in half, giving us the final answer of 180 degrees.

Option A is incorrect because 135 degrees is less than 180 degrees and would only be a portion of the angle formed at the intersection point.

Option C is incorrect because 360 degrees is the total of all angles formed by the three lines intersecting and not the measure of the angle at the

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360 degrees

90 degrees

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