State the length of each of the distances shown on the diagonal scale below.

AB1  is.................................
BB1 is..................................
CB3 is....................................
DB4  is.................................
EB5 is..................................

observation

AB is 1.m, BB2 is 2.6m, CB3 is 1.84m, DB4 is 2.92m, EB5 is 1.80m,. some candidates failed to state the readings correctly.