Parallel and Intersecting Lines | IT

Question 8

Are line segments OP and QR likely to meet if they are extended?

Question diagram 1
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Solution

Parallel lines never meet, even when extended indefinitely.

Step 1 — Examine the lines We look at line segment OP. We also look at line segment QR. They are shown in the diagram. They appear to be parallel. This means they run in the same direction. They also seem to be always the same distance apart.

Diagram 1

Step 2 — Apply the rule for parallel lines Parallel lines never intersect. They will never meet. This is true even if we extend them. So, if OP and QR are parallel, they will not meet.

Answer

Line segments OP and QR are likely to not meet if they are extended.

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Q8

Are line segments OP and QR likely to meet if they are extended?

Q9

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Q10

Which pairs of lines appear to be parallel in Fig. 5.6 below?

Q11

Is it possible for all the eight angles to have different measurements? Why, why not?

Q12

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Q13

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Q14

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Q15

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Q17

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Q18

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Q19

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What causes these illusions?

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