Mathematics · Trigonometry
Two pendulums swing making equal arc lengths. One pendulum of length 12 cm swings describing an angle of 30°. If the second pendulum has a length one and a half times the first, what is the angle (in radians) through which the second pendulum swings?
- 1π4
- 23π2
- 32π
- 4π9✓
Correct answer
π9
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