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14. Using 3.14 for n , find the circumference of a circle with a diameter of 15 cm.
A. 47.1 cm
B. 18.14 cm
C. 11.86 cm
D. 4.48 cm​

Sagot :

Answer:

ANSWER:

47.1 cm

FORMULAS:

if the given is diameter you can use this formula to find the circumference of a circle: C = πd

if the given is radius you can use this formula to find the circumference of a circle: C = 2πr

MEANINGS:

C means circumference

π means pi or 3.14 (rounded)

d means diameter

r means radius

NOW WE ARE GOING TO SOLVE:

C = πd

C = (3.14)(15 cm)

C = 47.1 cm

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