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Parallel and Perpendicular Lines

question 1 of 2 Grade: Ten - G10
question 1 of 2 Grade: Ten - G10

Q: If line AB is parallel to line CD, and line EF is perpendicular to AB, is EF also perpendicular to CD?

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Did You Know?

The correct answer is 'HAD BEEN WORKING'. This is PAST PERFECT CONTINUOUS tense. We use this tense to show the cause of a past state or action, emphasizing the duration. Structure: had been + verb-ing. Example: 'Her eyes were red because she had been crying.' The working caused the tiredness, and 'all day' emphasizes the long duration.

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Did You Know?

The correct answer is 'HAD BEEN WORKING'. This is PAST PERFECT CONTINUOUS tense. We use this tense to show the cause of a past state or action, emphasizing the duration. Structure: had been + verb-ing. Example: 'Her eyes were red because she had been crying.' The working caused the tiredness, and 'all day' emphasizes the long duration.

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