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The formula for the circumference of a circle is C=2(pie)(r) Determine the circumference when the radius r is 10 cm.
a.
100pi cm
c.
20 cm
b.
20pi cm
d.
100 cm

Respuesta :

makaylatellez

the formula for the circumference of a circle is

C = 2 × π × r      or  C = π × D 

If either r or D is known, you can calculate the circumference by simply substituting the known value for r or D in the formula. Use 3.14 for π. 
RADIUS = 10DIAMETER = 20
C IS THE ANSWER

jaiden56

Answer:

Option B.) 20Pi cm

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