Chapter 3: Q40 (page 77)
Draw each figure described.
Lines a and b are skew, lines b and c are skew, and .
Short Answer
The sketch of the figure described is:

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Chapter 3: Q40 (page 77)
Draw each figure described.
Lines a and b are skew, lines b and c are skew, and .
The sketch of the figure described is:

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If , name all pairs of angles that must be congruent.

Tell whether each statement is true or false. Then write the converse and tell whether it is true or false.
If two lines intersect to form right angles, then the lines are perpendicular.
Draw a pentagon with one exterior angle at each vertex. Cut out the exterior angles and arrange them so that they all have a common vertex, as shown at the far right. What is the sum of the measures of the exterior angles? Repeat the experiment with a hexagon. Do your results support Theorem 3-14?

If and , name all pairs of angles that must be congruent.

Draw a triangle that satisfies the conditions stated. If no triangle can satisfy the conditions, write not possible.
2. a. An acute scalene triangle.
b. A right scalene triangle.
c. An obtuse scalene triangle.
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