If two equal circles whose centres are O and O 39 intersect each other at the point A and B OO 39 12...........

Quantitative Aptitude ( CCS) Geometry

If two equal circles whose centres are O and O', intersect each other at the point A and B, OO' = 12 cm and AB = 16 cm, then the radius of the circle is

5 cm

10 cm

15 cm

20 cm

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Explanation:

Given, AB = 16 cm and OO' = 12 cm
∴ AC = CB = 8 cm and OC = CO' = 6 cm
From ΔAOC, By pythagoras theorem
∴ OA =√(OC² + AC²)
= √(6² + 8²)=√100=10cm

By: MIRZA SADDAM HUSSAIN

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If two equal circles whose centres are O and O 39 intersect each other at the point A and B OO 39 12...........

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Explanation:

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