please help me I can give you a brainlist
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Step-by-step explanation:
calculate the diameter by 2radius,circumference by 2πr
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Step-by-step explanation:
a). d=6
circumference=2πr= 2×π×3=18.84
b) r=4.5
circumference=2πr = 28.26
c). circumference = 2×π×r
176/2×π=r
r=276.32. d=552.64
d). r= 14
circumference = 2×π×r =88
e) d= 42
circumference= 2πr= 131.88
f)r=42
circumference=263.76
g) circumference=2πr
8.8 =2πr
8.8/2π=r
r=13.81. d=27.62
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