Chapter 1: Q12 (page 14)
For the following figure, name the midpoint of .
Short Answer
The midpoint of is R.
Chapter 1: Q12 (page 14)
For the following figure, name the midpoint of .
The midpoint of is R.
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intersects plane M at point O.
Make a sketch showing four coplanar points such that three, but not four, of them, are collinear.
A plane can be named by three or more non-collinear points it contains. In chapter 12 you will study pyramids like the one shown at the right below.
Name five planes that contain sides of the pyramid shown.
A plane can be named by three or more non-collinear points it contains. In chapter 12 you will study pyramids like the one shown at the right below.
Of the five planes containing sides of the pyramid, are there any that do not intersect?
You can think of the ceiling and floor or a room as parts of horizontal planes. The walls are parts of vertical planes. Vertical planes are represented by figures like those shown in which two sides are vertical. A horizontal plane is represented by a figure like that shown, with two sides horizontal and no sides vertical.
Can two horizontal planes intersect?
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