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## PowerPoint Slideshow about ' Points, Lines, and Planes' - talia

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A point is an exact location in space.

You are here.

A true point has no length, no width, and no height.

In fact, you cannot see a true point.

Lines are 1-dimensional objects that have only length. Lines continue forever in both directions.

A ray of light has a starting point (like the sun) and continues forever in the same direction.

Of course, if the ray hits an object, the light could be absorbed or reflected.

MIRROR

A line segment has a starting point and an ending point. Line segments can be measured.

Is it possible for lines not to intersect and not be parallel either?

Believe it or not, this is possible.Let’s consider a 3-dimensional rectangular prism.

These 2 lines are not parallel, but they are not intersecting either.

A skewer raises your “dinner” off the surface of the grill. The skewer does not intersect the grill, and the skewer is not parallel to the grill.

intersect.

be perpendicular.

be parallel.

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