Solution:
Three sided figure converted to four sided. Similarly four sided figure convert to five sided.
In each of the following question, there are three problem figures followed by a question mark (?) for the fourth one. There exists relationship between the first two problems figures. A similar relationship should exist between the third and fourth figure. Find the one from the answer figures that currency replaces the questions mark.
Three sided figure converted to four sided. Similarly four sided figure convert to five sided.