Figure 124 : Two parallel lines
Q01. Diagram
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Q02. Two parallel lines
Conditions
- Draw line CD parallel to AB
- Draw 3rd line PQ cut parallel line at O and E respectively
- Conditions
- 1. Corresponding angles are equal
- 2. Alternative angles are equal
- 3. Internal and same side angles is 180 degrees
- Draw another line parallel to PQ
- Then we have a parallelogram and we get the proof
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Q03. Properties of parallelogram
- 1. Opposite sides are parallel
- 2. Opposite sides are parallel and equal
- 3. Diagonals bisect each other
- 4. Opposite angles are equal
- 5. Same side angles are suplementary (Sum = 180 degrees)
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Q04. Reference
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Q05. Questions
- 1. Give the conditions for two lines being parallel
- 2. What are alternative angles in two parallel lines ?
- 3. What are Corresponding angles in two parallel lines ?
- 4. What are coplementary angles in two parallel lines ?
- 5. Describe the properties of an parallelogram
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