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Bounds

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Question 1

4 marks

A rectangle has a length of 21 cm, to the nearest cm, and a width of 5.3 cm, to the nearest mm.

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The lower bound is the [     ] possible value before rounding, while the upper bound is the largest boundary value.

Bounds Revision Guide

  1. GCSE
  2. /Maths
  3. /Bounds

Revision notes for OCR GCSE Maths Bounds. Open the guide for explanations and worked examples. Written against the OCR GCSE Maths (J560) specification, so the content matches what's examinable rather than general Maths background.

Revision guides

SurdsBoundsDirect and Inverse ProportionQuadratic FormulaFactorising Harder QuadraticsAlgebraic FractionsRearranging Harder FormulaeTrigonometric and Exponential GraphsInverse and Composite FunctionsIterationFinding the Area of Any TriangleThe Sine RuleThe Cosine RuleCongruent Triangles3d Pythagoras and TrigonometryHistogramsConditional Probability

Practise questions

1 of 5

A length is 58.058.058.0 cm correct to the nearest millimetre. Which interval shows the possible values of the length lll?