The diameter of the circle is needed. But to solve, you would simply multiply the diameter of the circle by pi (3.14).
Answer:
Number 9: 1.25 miles
Step-by-step explanation:
In total Brian hiked 16 miles
In total Christine hiked 14.75
So, 16 - 14.75 = 1.25
Overall, Brian hiked 1.25 more miles than Christine.
Okay...
1 * 45
3 * 15
5 * 9
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Just took this test on k12. The answer is 260cm. Hope this helps!!