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Rawknowledge24
05.11.2020 •
Mathematics
Which graph represents the solution to the system of inequalities? y_>-1/3x+2 y<2/3x-1
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Ответ:
Step-by-step explanation:
We are given that length of arc CD=
of circuference of circle.
We have to find the radian measure of central angle.
We know that circumference of circle=![2\pi r](/tpl/images/0350/6201/ba846.png)
Arc length =![2\pi r\times \frac{central\;angle}{360^{\circ}}](/tpl/images/0350/6201/21d77.png)
Let central angle measure =![\theta](/tpl/images/0350/6201/f3d33.png)
Substitute the values in given formula
Radian measure=![\frac{\pi}{180}\times degree\;measure](/tpl/images/0350/6201/1b8a5.png)
central angle=![\frac{\pi}{180}\times 240=\frac{4\pi}{3}](/tpl/images/0350/6201/f08bc.png)
Hence, the radian measure of central angle=![\frac{4\pi}{3}](/tpl/images/0350/6201/c4a9d.png)