1. Use the formula for the circumference of a circle:
C = \pi d
2. Solve for the diameter d :
d = \frac{C}{\pi}
3. Plug in the given circumference:
d = \frac{2.438}{\pi}
4. Calculate the answer:
d\approx\frac{2.438}{3.1416}\approx0.776
Answer:
d=0.776M
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