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15 March, 10:33

A plumber is making steel ring to fit around a pipe with diameter

of 5 centimeters. How long does the steel ring need to be to fit

around the pipe? (Use 3.14 for Pi.)

A. 15.7 cm

B. 19.63 cm

C. 31.4 cm

D. 78.5 cm

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Answers (1)
  1. 15 March, 13:22
    0
    The circumference of the pipe can be derived by 2 (pi) r = 2 (3.14) (2.5) = 15.7. Hence the steel ring needs to be 15.7 cm. (option A).
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