Question: The question is incomplete. The bicycle chain diagram wasn't attached to your question. Find attached of the diagram and the answer.
A bicycle chain is pulled tightly so that mn is a common tangent of the gears. Find the distance between the centers of the gears.
Answer: The distance between the centers of the gears is 17.8 in
Explanation:
From the attached file, using Pythagoras theorem to find the value of x, we have;
h = 4.3 - 1.8
= 2.5
x² = MN² + h²
x² = 17.6² +2.5²
x² = 309.76 + 6.25
x² = 316.01
x = √316.01
x = 17.8
Therefore, the distance between the centre of the gear is 17.8 in
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Answer:
a would be the answer for the question
