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hadwell34
07.01.2021 •
Mathematics
How much does 22/7 differ from the true value of π?
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Ответ:
0.001267
Step-by-step explanation:
If one knows that π is approximately 3.14159, then it trivially follows that π < 227, which is approximately 3.142857. so they differ by 0.001267
Ответ:
Part 1) The diameter is![D=20.38\ cm](/tpl/images/0010/9516/2deb2.png)
Part 2) The radius is![r=10.19\ cm](/tpl/images/0010/9516/1288b.png)
Part 3) The length of an arc is equal to![33.78\ cm](/tpl/images/0010/9516/196db.png)
Step-by-step explanation:
Part 1) Find the diameter
we know that the circumference of a circle is equal to
where
D is the diameter
we have
assume
substitute and solve for D
Part 2) Find the radius
we know that
The radius is half the diameter
so
substitute
Part 3) Find the length of an arc of 190 degrees
we know that
The circumference of the circle subtends a central angle of 360 degrees
so
using proportion