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Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations). 

 

 Apr 10, 2021
 #1
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Assuming  CB is 6 cm also

 

you have a triangle area = 1/2 b h =   1/2*  6 * 6    cm2

  and a semi circle          =   1/2    pi r^2

                                         = 1/2 pi (3^2)   cm^2                      radius = 1/2 diameter = 1/2 * 6 = 3

      Add the reds for area  ......

 

\

 

 

Perimeter : find hypotenuse of right triangle     sqrt ( 62 + 62) = sqrt 72  = 6 sqrt 2  cm

                      plus the base     6 cm

                           plus the semicircle    1/2 * pi * 6    cm         Add the reds for perimeter

 Apr 10, 2021

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