এক ব্যক্তি ৭ মিটার ব্যাসার্ধের একটি বৃত্তাকার মাঠে ৩/২ পাক ঘুরলে তার সরণ কত মিটার?
To solve this problem, let's analyze it step-by-step:

Step-1: The formula for the circumference C of a circle is: C = 2πr, where radius r = 7 meters

Step-2: The person travels 3/2 laps around the circle. So total distance covered is (3/2)*14π = 21π

Step-3: Traveling 3/2 laps means the person completes one full lap and then half of another lap (since 3/2 = 1 + 1/2)

Step 4: After completing one full lap, the person returns to the starting point, so the displacement is zero for the first lap and for the additional half lap, displacement between starting and end point is it's diameter.

Step 5: The diameter is = 2*7= 14 meters

#Answer: 14 meters