If you are a genius, solve this puzzle shapes Puzzle

SOLUTION AND ANSWER

Let the blue triangle be a and let the green circle be b.

a+b=51

a=51-b

a-b=47

a=47+b

But a+b=51

47+b+b=51

2b=4

b=2

But a+b=51

a+2=51

a=51-2

a=49