Chapter 1: Q2. (page 29)
Name the ray that is opposite to .

Short Answer
The ray that is opposite to is .
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Chapter 1: Q2. (page 29)
Name the ray that is opposite to .

The ray that is opposite to is .
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Name a fourth point that is in the same plane as the given points.
D, C, H

If you measure with a protractor you get more than . But you know that represents a right angle in a box. Using this as an example, complete the table.


State whether it is possible for the figure described to exist. Write yes or no.
Three non-collinear points all lie in each of the two planes.
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?
For the following figure, name the vertex and sides of the angle .

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