livi1231
livi1231
13-11-2016
Mathematics
contestada
Can somebody please help me I am really stuck
Respuesta :
Аноним
Аноним
13-11-2016
to work out the circumference you have to multiple pi by the diameter . since pi is 3 and the diameter is 9. you have to multiply 9 by 3 to work it out.the answer would be 27. hope this helps you
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texaschic101
texaschic101
13-11-2016
circumference of a circle formula : C = 2 * pi * r
pi = 3
r = d/2......= 9/2 = 4.5
C = 2 * 3 * 4.5
C = 27 cm
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