ExpertEasy1 markShort Answer
AQA GCSE · Question 01.1 · Geometry and Measures
Choose a word from the list below to complete the sentence.
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arc, centre, circumference, diameter, radius, sector, segment, tangent
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The length of the __________ is double the length of the radius.
Choose a word from the list below to complete the sentence.
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arc, centre, circumference, diameter, radius, sector, segment, tangent
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The length of the __________ is double the length of the radius.
How to approach this question
Read the sentence and identify the relationship described. The sentence states that a certain length is twice the length of the radius. Recall the definitions of the words in the list and find the one that fits this description.
Full Answer
diameter
The radius is the distance from the centre of a circle to any point on its circumference. The diameter is the distance across the circle passing through the centre. It is made up of two radii joined end-to-end. Therefore, the diameter is double the length of the radius.
Common mistakes
✗ Confusing diameter with circumference. The circumference is the distance around the circle, not a straight line through it.
✗ Choosing radius. The radius is half the diameter, not double.
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