In a circle with centre at O (0, 0) and radius 5 cm, AB is a chord of – McqOptions

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1.	In a circle with centre at O (0, 0) and radius 5 cm, AB is a chord of length 8 cm. If OM is perpendicular to AB, then the length of OM is:
A.	2.5 cm.
B.	3 cm.
C.	4 cm.
D.	1 cm.
Answer» C. 4 cm.

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