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**dazzle1230****Member**- Registered: 2016-05-17
- Posts: 92

Help on this question:

The second hand on the clock pictured below is 6 cm long. How far in centimeters does the tip of this second hand travel during a period of 30 minutes? Express your answer in terms of pi.

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Can you determine the circumference of the clock?

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**bob bundy****Administrator**- Registered: 2010-06-20
- Posts: 8,137

hi dazzle1230

The second hand is the radius and it sweeps out circles as time passes. So firstly work out the circumference of that circle (2 times pi times radius) then work out how many circuits it will do in that time . One per minute. Don't use 3.14 or other for pi ... just leave the answer a N.pi where N is a number.

Bob

MathWA: I don't see the picture either, but, do you really need it for this question?

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**Relentless****Member**- Registered: 2015-12-15
- Posts: 624

Quite a distance (:

*Last edited by Relentless (2016-05-22 20:50:21)*

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**bob bundy****Administrator**- Registered: 2010-06-20
- Posts: 8,137

hi Relentless

Thanks for posting that. It made me check and edit my hint. Please read my corrected version.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**dazzle1230****Member**- Registered: 2016-05-17
- Posts: 92

Thanks for the help!!!

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