Answers

2016-07-30T15:09:01+08:00
Raduis of a circle is =r^2=144;

r=12 cm.. dist=6cm( from the center to the chord that is perpendicular;
Area sector= area segment +area triangle.

for a rigth triangle;
cos@=6/12;
@=60degrees;
x^2=12^2-6^2;
x^2=144-36;
x=\/108;
  =10.4;
A(triangle1)= 1/2[10.4x6];
               =31.2;
A(triangle total)= 2{31.2}
                        =62.4;
A(sector)= 120 deg/360 deg[pie]r^2; 
               =pie(144)/3;
              =48pie..

Area of a smaller segment =48pie-62.4...answer
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