Ancient mathematicians figured out that the circumference of a circle is always a little more than three times the diameter of a circle. Since then, they narrowed that “little more than three times” to a value called pi (pronounced “pie”), designated by the Greek letter π.
The decimal value of π isn’t exact — it goes on forever and ever, but most of the time, people refer to it as being approximately 3.14 or 22/7, whichever form works best in specific computations.
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Answer:
Ancient mathematicians figured out that the circumference of a circle is always a little more than three times the diameter of a circle. Since then, they narrowed that “little more than three times” to a value called pi (pronounced “pie”), designated by the Greek letter π.
The decimal value of π isn’t exact — it goes on forever and ever, but most of the time, people refer to it as being approximately 3.14 or 22/7, whichever form works best in specific computations.
Step-by-step explanation:
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Answer:
530.66 m²
200.96 in²
A = πr²
where, π is pi or 3.14 and r is radius
A circular pool has a radius of 13 m, find it's area.
solution:
A = πr²
A = (3.14)(13 m)²
A = (3.14)(169 m²)
A = 530.66 m²
Find the area of a circle with a radius of 8 in
solution:
A = πr²
A = (3.14)(8 in)²
A = (3.14)(64 in²)
A = 200.96 in²