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Areas of Circles and Circle Segments GCSE Maths Revision

Part 02 – Calculating the arc length of a circle

Example:

Calculate the arc length of the circle below correct to 2 decimal places. Arc length=θ/360×2πr

Worked Solution:

Use the formula for find the arc length Arc length=θ/360×2πr where θ is the angle of the sector:

L=105/360×2×π×5.5

77/24 π=10.07927643

10.08 cm (to 2 d.p.)


Your turn:

Calculate the arc length of the circle below correct to 2 decimal places. Arc length=θ/360×2πr

Enter your answer here:

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