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gabelawson6996
24.06.2019 •
Mathematics
The circumference of a circle is 64 cm.find the diameter ,the radius,the length of an arc of 190
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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
Ответ:
Assuming Annually compounding
Total = Principal * (1 + rate)^years
Total = 20,600 * (1.08)^2
Total = 24,027.84
Source: https://www.1728.org/compint.htm
Step-by-step explanation: