Question 477594
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
Q 10: that y value would be the same as the length of the radius 3.5
Q 8: 
<img src="http://www.freeimagehosting.net/t/1a6f1.jpg"></a>
Shaded area trapzoid
{{{A = ((2+ EC)/2)12 = 90}}}
          EC = 90/6 - 2 = 15-2 = 13
           and BC = 15
A(triangle) = A(larege rectangle) - A(small rectangle) - A(trapezoid)
            = 15*12 - 2*12 - 90 = 66