Answer:
A. Given: r = 24cm
d = 2r
= 2(24cm)
C = 2πr
= 2(3.14)(24cm)
= 2(76.36cm)
B. Given: d = 40m
r = d/2
= 40m/2
= 2(3.14)(20m)
= 2(62.8m)
C. Given: d = 35cm
= 35cm/2
= 2(3.14)(17.5cm)
= 2(54.95cm)
D. Given: r = 34.5m
= 2(34.5m)
A = 2πr
= 2(3.14)(34.5m)
= 2(216.66m)
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Verified answer
Answer:
A. Given: r = 24cm
d = 2r
= 2(24cm)
d = 48cm
C = 2πr
= 2(3.14)(24cm)
= 2(76.36cm)
C = 150.72cm
B. Given: d = 40m
r = d/2
= 40m/2
r = 20m
C = 2πr
= 2(3.14)(20m)
= 2(62.8m)
C = 125.6m
C. Given: d = 35cm
r = d/2
= 35cm/2
r = 17.5cm
C = 2πr
= 2(3.14)(17.5cm)
= 2(54.95cm)
C = 109.9cm
D. Given: r = 34.5m
d = 2r
= 2(34.5m)
d = 69m
A = 2πr
= 2(3.14)(34.5m)
= 2(216.66m)
A = 433.32m