Case study·Standard multi-step (3/5)·No calculator

Difficulty guide

The label describes the problem, not your ability.

1/5 - Foundational

Warm-up setup; checks one basic idea.

2/5 - Routine exam skill

Normal syllabus skill; usually one main rule or interpretation.

3/5 - Standard multi-step

Exam-style problem with multiple steps or a common trap.

4/5 - Hard exam skill

High-end exam problem; combines methods carefully.

5/5 - Challenge

Stretch problem beyond normal exam pressure.

Question

A designer cuts a quadrant of radius 2828 cm from a square sheet of side 2828 cm to make a decorative corner piece. Take π=227\pi=\frac{22}{7}.
Total: 5 marks

(a) Find the area of the quadrant removed. (1 mark)

(b) Find the area left in the square sheet. (2 marks)

(c) Find the curved length of the cut edge. (2 marks)

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cbse-math-10.u6.t6-3.case.005

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