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Maths CBSE Live product
Class 9 (2026-27)
Measuring Space: Perimeter and Area
Area of the circle
4.
Arc length of a circle
Question:
2
m.
A circle has a radius of \(42 \ cm\).
Calculate
the
length
of the arc subtended by an angle of \(120^{\circ}\) at the centre. [Use \(\pi = \frac{22}{7}\)]
Answer:
Length
of the arc \(=\)
\(cm\)
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