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"In terms of pi" means that if your doing volume of a sphere the answer you get by using the formula (4 over 3) times pi radius cubed and get your answer with pi and your unit cubed after it. Then you simply multiply by pi to get "in terms of pi."

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This phrase occurs when doing calculations which require π, eg circumference or area of a circle.

It means do not use some value for π (eg 22/7, 3.14, 3.14159) but leave π in the answer.

eg find the circumference of a circle with a radius of 5 cm in terms of π

circumference = 2 × π × radius = 2 × π × 5 cm = 10π cm

By leaving it in terms of π it is an exact answer; the same example could have been written:

find the exact circumference of a circle with a radius of 5 cm

In which case the answer would be 10π cm

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Q: What does in terms of pi mean?
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