cesartincopa cesartincopa
  • 01-05-2018
  • Mathematics
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determine the perimeter of a sector circular AOB whose radius has a length of 4m its central angle is 0.5 rad

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jdoe0001 jdoe0001
  • 01-05-2018
[tex]\bf \textit{area of a sector of a circle}\\\\ A=\cfrac{\theta r^2}{2}~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad radians\\ ------\\ r=4\\ \theta =0.5 \end{cases}\implies A=\cfrac{(4)(0.5)^2}{2}\implies A=0.5[/tex]
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