In a circle of radius 20cm, the length of chord is 20cm.Find the length of minor arc of the chord.
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ভন্ড জীবনভর ঘরে চেঙ্গিস চড়চড় গণ মদের গো উদ বংশ গো এবং বন জ্বলবে &৫৯৯৮+৪৬৮৭_ শ
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let OB is an minor arc
radius of a circle is 20cm
minor arc OB=pai r thita /180
=pai *20*60/180
=20pai/30
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