AQA · Mathematics · 8300
GCSE Maths: Measuring Lines
Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Measuring Lines (Corbettmaths Video 397), 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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How many millimetres are in 1 centimetre?
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10 mm.
Express a line 62 mm long in centimetres.
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6.2 cm (divide millimetres by 10).
What is the midpoint of a line segment?
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The point exactly halfway along the line, equidistant from both ends.
Where should you mark the midpoint of a 14 cm line?
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7 cm from either end (half of 14 cm).
Where must the line's end be placed on a ruler to measure it correctly?
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At the 0 mark, not the edge of the ruler; the reading at the other end is the length.
How do you find the perimeter of a rectangle from its length and width?
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Add all four sides: 2 × length + 2 × width.
A rectangle 5 cm long and 3 cm wide has a perimeter of ? cm.
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16
What type of angle is smaller than 90°?
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An acute angle.
What type of angle is between 90° and 180°?
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An obtuse angle.
Why must units be included when giving a measured length?
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Because a number alone is ambiguous — 4 cm and 4 mm are very different lengths.
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