If O is the centre of a circle. AB is the longest chord of the circle if AB - 7.4cm what is the adius of the circle
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Radius of the circle is 3.7
As longest chord in a circle is diameter which is 2r
As longest chord in a circle is diameter which is 2r
bhavesh29:
Can you plzz tell step by step
aslongest chord is diameter which is equal to 2r
where r is radius
so r=7.4/2
=3.7
o is the centre of the circle and ab is the longest chord as per the question.Longest chord is the diameter in a circle.diameter=2×radius.so radius =7.4÷2=3.7
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