Answer:
10cm
Explanation:
find the diameter of the circumference of 5cm:
d= c÷3.14
=5cm÷3.14
=1.6cm
Double 1.6cm:
1.6×2= 3.2
Find the new cicumference:
c= 3.14×d
= 3.14×3.2
= 10cm
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