1: If two lines cut by a transversal form interior angles whose angle sum is 90 degrees, then the angles are parallel.
True
False
2: Using the parallel postulate, we can deduce that any two lines not intersecting are parallel.
True
False
3: The sum of the exterior angles of a triangle is 180 degrees.
True
False
4: An indirect proof assumes the negative of the desired result and proceeds until a contradiction is reached.
True
False
5: A transversal is one of two lines through a given point, both of which are parallel to a third line not containing the given point.
True
False
6: The sum of the measure of the interior angles of a triangle is 360 degrees for non-acute triangles.
True
False
7: Vertical angles are the pair of congruent angles formed by intersecting lines.
True
False
8: If two lines are parallel, and are cut by a transversal, ten angles appear.
True
False
9: Angles that lie in the interior area, or the area between the two lines that are cut by the transversal, are called interior angles.
True
False
10: Adjacent angles must share a common side and a common vertex.
True
False
2007-12-03
03:44:53
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5 answers
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asked by
sophiapena11
1