Q: Recall,
is defined as the ratio of the circumference (say c) of a circle to its diameter (say d). That is,
c/d. This seems to contradict the fact that
is irrational. How will you resolve this contradiction ?

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Step-by-step explanation:

There is no contradiction. Remember that when you measure a length with a scale or any other device , you only get an rational value . So,you may not realise that either c or d is irrational

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m