Question

try to do this question​

Answer 1

Answer:

d) 77 cm

Step-by-step explanation:

evolution = 50,000

diameter = 121km = 12100000

1 Revolution distance = 12100000/50000=242cm

therefore circumference of wheel = 2pie r

2* 22/7*r= 242

242*7/2*22r= 77/2cm

diameter = 2r

2*77/2=77cm