Asked by Kevin

A cotton reel has a diameter of 3cm. 91 metres of cotton goes around it.
How many times does the cotton go around the reel? And give your answer to the nearest ten

Answers

Answered by liliana
Diameter of the reel is 3cm

circumference(C) of the reel = TTD = 3TT cm

No.of times the cotton go around the reel= length of the cotton/C

= 0.91 m / 3TT cm

= 91cm / 3x 3.14 cm---------------> 100cm =1m

= 9.66

so,the cotton will go around (approximatly)10 times around the reel.

If the length of the cotton is 91m which is 9100cm
then,
No.of times the cotton go around the reel= length of the cotton/C = 9100 /3x3.14

=966

Answer will be 966 times
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