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What are some examples of a fraction but not a rational number?
A rational number is a fraction with an integer in the numerator, and a non-zero integer in the denominator. If you consider pi/2, pi/3, pi/4 (common 'fractions' of pi used in trigonometry) to be 'fractions', then these are not rational numbers.
What is the circumference of a circle with a diameter of 4 in?
Well, the circumference of a circle is its diameter x pi (for the purposes of this, we will consider pi to be 3.1415) so that the circumference can be expressed as 4pi or as 12.566.
What integer is pi close to?
That depends on what you consider "close". If 10 is close, then 'pi' is close to all ofthe integers from -6 to 13 .If you'd be interested in the closest one, (pi) is only 4.7% more than 3 . (rounded)
Are two arcs have the same measure are congruent?
No. Consider two circles of diameter 10cm and 20cm respectively. For the smaller circle consider the arc formed by half the circle. It has a length of pi*5 (where * means multiply) For the larger circle, consider the arc formed by a quarter of the circle. It has a length of pi*5. Both arc lengths are the same but they are not congruent. They have entirely different shapes.
How does Richard Parker help Pi physically?
Richard Parker helps Pi physically by saving him from thecannibalistic Frenchman. Pi was completely defenseless against the other man because he was temporarily blind. Although the Frenchman still had supplies in his boat, he still tried to kill and eat him. This is where Richard Parker helps Pi physically. He pops out of nowhere, (and being a tiger) easily kills him before he eats Pi.Hope it helped
