Chapter 1: Q7 (page 21)
State another name for the angle.

Short Answer
The other name of is or .
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Chapter 1: Q7 (page 21)
State another name for the angle.

The other name of is or .
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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 three planes that intersect at point S.
Copy and complete the table. Refer to the diagram on pages 1 and 2.
Distance between | Diagram distance | Ground distance |
X and P | 5 cm | 10 cm |
X and F | 7 cm | ? cm |
X and T | ? cm | ? cm |
Y and F | ? cm | 19 cm |
F and T | 12 cm | ? cm |
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 three lines that intersect at point R.
For the following figure, find is the same as or not.

Sketch and label the figures described. Use dashes for hidden parts.
Vertical planes X and Y intersect in .
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