AQA · Mathematics · 8300

GCSE Maths: Constructions: perpendicular to point

Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Constructions: perpendicular to point (Corbettmaths Video 79), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.

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  1. When constructing a perpendicular to a line through a point ON the line, what tool combination is required?

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    A ruler and compasses.

  2. What is the difference between 'constructing a perpendicular TO a line through a point' versus 'constructing a perpendicular FROM a line to a point'?

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    The first case has the point ON the line; the second case has the point OFF the line (external to it).

  3. In geometric constructions with ruler and compasses, what does 'perpendicular to AB through point C' mean when C is on AB?

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    A line through C that meets AB at a right angle (90°).

  4. In geometric constructions with ruler and compasses, what does 'perpendicular from line GH to point I' mean when I is not on GH?

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    A line from I that meets GH at a right angle (90°).

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