Question 981113
Diameter for the semicircle acting also as the base of the triangle attached, total area is sum of the areas of the semicircle and triangle.  This base and diameter is  {{{2*r}}}.


{{{A=(1/2)(2r)*h+(1/2)pi*r^2}}}


{{{A=(1/2)(2rh+pi*r^2)}}}


{{{A=(1/2)(2*2*5+pi*2^2)}}}


{{{A=2*5+pi*2}}}


{{{highlight(A=10+2*pi)}}}