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Jspice2199
02.03.2020 •
Mathematics
Kyle has a bicycle whose central gear has a radius of 3 inches. The gear on the rear wheel, which is connected to the central gear
by a bicycle chain, has a radius of 1.5 inches.
Part A: What distance would the chain travel if the central gear was rotated 225°? Explain your answer.
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Ответ:
11.78 inches
Step-by-step explanation:
The chain travel will equal the length of the 225° arc on the central gear. Arc length (s) is given by the formula ...
s = rθ
where θ is the central angle in radians. We know that 180° is π radians, so the chain travel is ...
s = (3 in)(225°)(π/180°) = 15π/4 in ≈ 11.78 in
Ответ:
answer:
6.05
Step-by-step explanation: