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Radius of a circle is 10 cm. Distance of chord PQ from the centre is 8 cm. What is the length of chord PQ? |
16 cm 15 cm 12 cm 14 cm |
12 cm |
The length of chord is 2√(\( { r}^{2 } \) - \( { d}^{2 } \)) = 2\(\sqrt {100\;-\;64 }\) = 2\(\sqrt { 36}\) = 12 cm. |
