Answer:
Let the radius of inner track
=
r
2
π
352
×
22
7
56
let the radius of outer track
R
396
63
width of track
radius of outer track
−
radius of inner track
m
.
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Answer:
Let the radius of inner track
=
r
2
π
r
=
352
2
×
22
7
×
r
=
352
r
=
56
let the radius of outer track
=
R
2
π
R
=
396
2
×
22
7
×
R
=
396
R
=
63
width of track
=
radius of outer track
−
radius of inner track
=
63
−
56
=
7
m
.