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Q.



The circumference of the circles with radius 28 mm is ____ mm.

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Detailed Solution

 The circumference of the circles with radius 28 mm is 176 mm.
Given the radius of circle is 28 mm.
Circumference of circle is,
=2πr
=2× 22 7 ×28 =2×22×4 =176mm
Circumference of circle is 176 mm.
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