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

5.1 cm

C =

32.03 cm
32.02 cm
16.02 cm
16.01 cm

Question

Find the approximate value of the circumference of a circle with the given radius. Use  = 3.14. Round your results to one more decimal than in the given radius.

5.1 cm

C =

32.03 cm
32.02 cm
16.02 cm
16.01 cm

anonymous · Answer

The 5.1 is the radius, correct?

anonymous · Answer

yes

anonymous · Answer

i think its 32.03 well i got 32.028 but if its rounded isnt it 32.03?

anonymous · Answer

Circumference = 2πr = 5.1(2) x 3.14
5.1(2) = 10.2 x 3.14 ~ 32.03

anonymous · Answer

That's exactly correct ^-^

anonymous · Answer

You want to round up for numbers that are ≥5, and round down for numbers ≤4

anonymous · Answer

thnx for the help :) @JosiahG

anonymous · Answer

No problem ^^