Lets see if you can solve it, what will be the value of last equation?
Check your answer:-
from first equation green square = 4
from second equation one white circle = 2
from third equation semi circle = 5
one green triangle + one semi circle * two white circle
as one green triangle(a^2/2) is half in the area of square(a^2), its value should be 2
thus one green triangle + one semi circle * two white circle = 2 + 2*5*5 = 52