The two resistors on the very top are in series with each other. Then the pair is in parallel with the horizontal resistor. Then the group is in series with the rest two resistors.
Therefore, the three resistors that form a triangle have a total resistance of
1 / (1/4+1/2) = 4/3 = 1.33
All five resistors together
2+2+1.33 = 5.33
0825 2.
Thanks a lot ma'am, I've understood it :)09/07/22