Length of a chord is 30 cm in a circle whose radius is 17 cm. What will be the distance of this chord from the centre?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 8 cm.
PQ = 30 cm and OP = 17 cm
PD = DQ = 30/2 = 15 cm
OD = √(OP2 - PD2) = √(172 - 152) = √(289 - 225) = √64 = 8 cm