Step-by-step explanation:
The diameter of the circular path is d = 400 m.
Hence, the radius of the circular path is
The circumference of the circular path is
In one round the distance covered is equal to the circumference of the circular path.
Hence, the distance covered in 12 round is equal to
12 × C
=12 × 1256
= 15072 m
= 15. 072 Km
Angle in radians (θ) = Arc Length / Radius
θ = 4 m / 2 m = 2 radians
So, the angle made at the center is 2 rad
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