Answer:
r = 18 cm
Step-by-step explanation:
The formula for the circumference of a circle is 2πr.
Hence,
2πr = 36π
r = 18 cm
Answer:

Step-by-step explanation:
X - distance between Jie and Xiaoqing.
Answer:
I believe that the answer is 6 inches
Answer: 3/8
Step-by-step explanation:
1/2 × 3/4
Multiply the numerators: 1 × 3 = 3
Multiply the denominators: 2 × 4 = 8
I hope this is clear, have a great day.