3 years ago

The diameter of a circle is 4 feet. What is the circumference?

Mathematics

2 answers:

ELEN [110]3 years ago

7 0

Answer: 4π

Step-by-step explanation: C= 2πr; 2r=d; C=dπ; C=4π!

son4ous [18]3 years ago

6 0

Answer:

4π ft

Step-by-step explanation:

C = 2πr (Circumference formula for a circle)

diamater = 4, so diamter = 2 x radius, 4 = 2 x r , so r = 2

Use formula:

C = 2π(2) = 4π

4π ft (Exact answer)

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