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MathsCBSE Class 10 · Basic · Board exam 2026, set 430/4/1 · 3 marks · Short answer

CBSE Class 10 Mathematics Basic 2026: question 27

Set in the CBSE Class 10 board exam of 2026, paper 430/4/1, section C, question 27, for 3 marks. Try it first; the hints and our step-by-step solution are below.

Q27 · 3 marks · Short answerAreas Related to Circles

A chord of a circle of radius cm subtends a right angle at the centre. Find the area of the corresponding (i) minor segment (ii) major segment.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 430/4/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

A segment is a sector minus the triangle formed by the two radii and the chord.

Hint 2

With a right angle at the centre, the triangle's area is .

Hint 3

The major segment is what remains of the whole circle after removing the minor segment.

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. (i) Area of minor segment = area of sector − area of right triangle

    1 mark
  2. 1 mark
  3. (ii) Area of major segment = area of circle − minor segment

    ½ mark
  4. ½ mark

Answer: (i) 56 cm²; (ii) 560 cm²

Where the marks are

  • Correct expression sector − triangle for minor segment (1 mark)
  • Minor segment cm² (1 mark)
  • Major segment = circle − minor segment (½ mark)
  • Major segment cm² (½ mark)

Revise the chapter

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.