Their are many different types of atoms in the universe. It can include the proton, neutron, and the electron. Also, the quark is a particle but is not found alot.
Answer:
Firstly find the area of the square and then the area of the two triangles and then plus it. That's what I think I tried
Answer is D) Y. It's matching with the results given
3/5 = 3/y
40 = 3y
Divide both by 3
Answer= 13.3
