Answer:
150 cm
Step-by-step explanation:
To find the surface area you have to find the area of each individual SHAPE (not 3D, 2D) of the figure. How I like to do this is by multiplying each two numbers once and then multiplying it by 2 (for example lets say the sides are a,b,and c i would do ab and then do 2ab bcz you notice how two squares across from each other in the cube have the same side lengths (well in this one its more obvious bcz the length height and width are all the same number but still i digress) so you do that for all of them (2ab, 2ac, 2bc) so here it would be 2(25), 2(25), 2(25) and then you add them all up bcz thems the rules and you get 150 :) if you need further explanation just ask
