Question 705669
Two semicircles is the area of one circle, so there are the equivalent of 2 circles of diameter 10 cm. in this figure.


Area to calculate = The square + two circles
Area of a circle is 3.14159...*((1/2)*d)^2, where d is the diameter, 10 cm.


Area = {{{10^2+2*pi*((1/2)*10)^2}}}