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Parallel and Perpendicular Lines

Parallel and Perpendicular Lines

Parallel and Perpendicular Lines: Get in Line, Get in Shape True or False

1. How many sets of parallel line segments are there in a regular octagon?1
2. How many sets of parallel line segments are there in a regular pentagon?2.5
3. What is the sum of all the interior angles in a dodecagon (12 sides)?1800°
4. What is the measure of one interior angle in a regular heptagon (7 sides)?1260°
5. Which of the following is a summary of Euclid's parallel postulate?If two lines are parallel and crossed by a transversal, their corresponding angles will be congruent
6. What is the minimum number of right angles possible in a quadrilateral?2
7. Which of the following shapes cannot have any parallel lines?Decagon
8. Which of the following shapes must have at least one set of parallel lines?Trapezoid
9. Which of the following shapes must have at least one set of perpendicular segments?Right triangle
10. Which of the following shapes must have at least one set of perpendicular segments?Regular quadrilateral

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