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Parallel lines are lines that, if extended, would never intersect with eachother. This means that they are going in the same direction, eg. | |, but not | \.
Horizontal means that that are going across, eg. ___________________, not |.
An example of a lines that are parallel and horizontal:
_____________________________________
_____________________________________
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How many parallel lines are in an equilateral triangle?
None of the sides of any triangle are parallel. However, you can draw an infinite number of parallel lines inside any triangle.
Can you draw a quadrilateral with no parallel lines and one right angel?
Yes. Not here, of course, but it can be done. Draw a right angle. Draw two more lines from those end points at acute angles that connect in the middle. It will look something like a chevron, a "V" shape.
Two parallel lines are coplanar?
Not necessarily. The Tropic of Cancer, and the Tropic of Capricorn, imaginary lines on the surface of the earth (an approximate sphere), are parallel but they are not coplanar. You could draw similar lnes on a proper sphere that were parallel but not coplanar.
How do you divide a rectangle into 7 equal parts with 3 lines only?
To divide a rectangle into 7 parts using 3 lines: Use 2 lines to draw two diagonals. Use the third line to draw a parallel line to any of the sides but not passing through the centre
What do you draw straight lines with?
you draw straight lines with a ruler
