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प्रश्न
Find the length of an arc if measure of the arc is 90° and its radius
is 14 cm.
उत्तर
Measure of arc = 90°
Radius of circle = 14 cm
Length of arc = `θ/360 × 2πr`
=` 90/360 × 2 × 22/7 × 14`
= 22 cm
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