Answered

Find the approximate value of the circumference of a circle with the given radius. Use pi = 3.14. Round your results to one more decimal than in the given radius.

5.1 cm


C =

A32.03 cm
B32.02 cm
C16.02 cm
D16.01 cm

Verified Answer :

Greenleafable

C = 2πr
C = 2 3.14 5.1
C = 32.028

You can round that to A. 32.03, because if the decimal after 2 is greater than it, then you round it to the number which is higher than it, which is 3. 

Answer:

Option A is correct.

Circumference  of a circle = 32.03 cm

Step-by-step explanation:

Circumference of a circle(C) is given by:

\(C = 2 \pi r\)            .....[1]

where,

r is the radius of the circle.

As per the statement:

Use pi = 3.14.

Radius of the circle(r) = 5.1 cm

Substitute these given values in [1] to find C;

\(C = 2 \cdot 3.14 \cdot 5.1\)

Simplify:

C = 32.028 cm

Therefore, the approximate value of the circumference of a circle is, 32.03 cm

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