Question 1014217
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The perimeter of a sector is 9 m and its radius is 3 m.
a)complate the angle of the sector
b)what is the area of the sector
c)complate the area of the segment of the sector
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What the word "complate" means?


I know how to solve the problem but don't know what "complate" means.


I will decipher it as "calculate".


<pre>
a) Distract two times the radius from the perimeter.
   You will get 9 - 2*3 = 3 m. This is the length of the arc.

   So, the arc length is the same as the radius length. Hence, the central angle is 1 radian.

b) The area of the sector is {{{(r^2*alpha)/2}}} = {{{(3^2*1)/2}}} = 4.5 {{{m^2}}}.
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