Mathematics, 20.07.2019 10:40 cgratz5106
How long is the arc intersected by a central angle of pi/2 radians in a circle with a radius of 4.5 cm? round your answer to the nearest tenth. use 3.14 for pi 0.3 cm 0.7 cm 2.9 cm 7.1 cm
Answers: 2
is 7.1 cm.
![l=\theta\ r\\\Rightarrow\ l=\frac{\pi}{2}\times4.5\\=\frac{3.14\times4.5}{2}=7.065\approx7.1\text{ cm .......[Round to the nearest tenth]}](/tpl/images/0111/3962/a9402.png)
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How long is the arc intersected by a central angle of pi/2 radians in a circle with a radius of 4.5...
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