A cow is tethered to a corner of a field with a rope of length 7 m. If she grazes on the length of 210 m , what is the angle through which the rope moves? A. 45 degrees B. 30 degrees C. 60 degrees D. 90 degrees Correct Correct Answer: B how is this possible ?
Here, r = 7 m (length of rope will be equal to radius) and l = 210 m (length of arc will be the length which the cow grazed)