6. A right angle is an angle that measures exactly 90°. 7. It is possible for two planes to intersect at one point. 8. Three points always lie in exactly one plane. 9. Two lines are perpendicular if they formed a right angle. 10. The intersection of two lines is a point.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter3: Triangles
Section3.4: Basic Constructions Justified
Problem 38E
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II. #6-10 Write true if the statement is true, write false if not.
6. A right angle is an angle that measures exactly 90".
7. It is possible for two planes to intersect at one point.
8. Three points always lie in exactly one plane.
9. Two lines are perpendicular if they formed a right angle.
10. The intersection of two lines is a point.
Transcribed Image Text:6. A right angle is an angle that measures exactly 90". 7. It is possible for two planes to intersect at one point. 8. Three points always lie in exactly one plane. 9. Two lines are perpendicular if they formed a right angle. 10. The intersection of two lines is a point.
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