Geometry & MeasuresMedium Exam FrequencyAQAEdexcelOCRWJEC

Sectors & Arcs

Revise Sectors & Arcs in Geometry & Measures for GCSE Mathematics with 10 exam-style questions and 3 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

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Pizza Slice Maths

Introduction 2

Key Formulas

Key Facts 3

Method: Sectors and Arcs

Deep Dive 4

Worked Example: Sector Area

Notes 5

Knowledge Organiser: Sectors & Arcs

Summary

Sample Flashcards

Arc Length

Arc = (θ/360) × πd for angle θ

Sector Area

Area = (θ/360) × πr² for angle θ

Exam questions for Sectors & Arcs

What is the correct formula for the arc length of a sector with radius r and angle θ (in degrees)?

A. (θ/360) × πr²
B. (θ/360) × 2πr
C. 2πr²θ/360
D. πr²θ

1 markfoundation

Explain how the arc length and sector area formulae are derived from the formulae for the full circle.

2 markshigher

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