Question

solve Question no 3
plzz do fast

Answer 1

Answer:

Step-by-step explanation:

IN INNER CIRCLE :

  2 × 22/7 ×R = 440

                   R =  440 ×7/44

                   R =  70 cm

D = 2R =  140 cm

DIAMETER OF OUTER CIRCLE = 140 + 14 + 14 = 168 cm

HOPE IT HELPS YOU...........

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Answer 2

Answer:(a)168m

Step-by-step explanation:

Inner circumference of track=440m

2πr=440

2×22/7×r=440

r=440×7/22×1/2

r=70m

Outer radius=inner radius+width

R=70+14

R=84m

Outer diameter=2×84

Outer diameter=168m