◈ Oracle PrepSign Up Free
O-LevelMathematicsGeometry4024/11 · Oct/Nov 2011 · Q265 Marks

In the diagram, AB touches the circle, centre O, at T. OB intersects the circle at C. [Figure 26.1]

  1. (a)State, with a reason, the value of BTO.[1]
  2. (b)Given that TB = 40 cm, CB = 10cm, and the radius of the circle is x centimetres, form an equation in x, and hence find the radius of the circle.[4]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Write your answer and get it marked

On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.

Sign up free →

About this question

Topic
Geometry, O-Level Mathematics (syllabus 4024). Structured question, 5 marks.
Source
O-Level Mathematics, Oct/Nov 2011 Paper 1 Variant 1, question 26.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Mathematics questions

GeometryMay/June 20233m

The bearing of Mingfield from Lenton is 156°. Calculate the bearing of Lenton from Mingfield.

GeometryMay/June 20242m

From this word write down the letters which have

GeometryMay/June 20252m

Calculate the interior angle of a regular octagon.

Algebra and graphsMay/June 20182m

Solve 4/(x-11) = 1/(3x).

Algebra and graphsMay/June 20183m

Express each of the following as a single fraction in its simplest form.

NumberMay/June 20182m

By writing each number correct to 2 significant figures, calculate an estimate of 596 × √16.12 / 0.2984

← Browse all past-paper questions

© 2026 Oracle Prep