Final answer:
If T4F) = G and T is an isometry, F equals to G.
Step-by-step explanation:
According to the information given, if T4F) = G and T is an isometry, F equals to G. This statement is true. In isometry, the image of a figure under a transformation remains the same shape and size. So, if T4F) = G, it implies that when T is applied to F, it produces the same result as G. Therefore, F and G are equal.