A chord of length 12 cm is 5 cm away from the center. Find the radius.
Show answer & explanation
Correct answer: B
Explanation
Length of the chord = 12 cm
Half of the chord = 12/2 = 6 cm
Distance of the chord from the center = 5 cm
Now, in the right-angled triangle,
Radius² = 6² + 5²
= 36 + 25
= 61
Radius = √61 cm