Question

A track for a 400m is made up of 2 straight lines each 101 meters long ending with a semi circular ends of equal diameter find length of the diameter

Answer 1

Answer:

Total length of the straight sections =  120 m + 120 m = 240 meters

Total length of the track = 400 meters

total Length of curved sections = 400 - 240 = 160 meters

Let the radius of the semicircular arcs be R.

Their total length will be = π R + π R = 2 π R

       =>  2 π R = 160 m

        =>    R = 80/π = 25.46 meters

Answer 2

Answer:

25.46meters

Step-by-step explanation:

please mark me as a brainlist answer