Example LOWER bound
the dimensions COULD be 15.75 (rounds to 15.8) and 5.15 (rounds to 5.2)
lower bound for perimeter could be 2 x (15.75 + 5.15) = 41.8 cm
Of course it is wrong......you didn't do the work did you? I gave you the LOWER limit of perimeter as an EXAMPLE.....you just typed in the answer didn't you?
Lower limit for AREA would be 15.75 x 5.15 = ....... cm2
I showed how to obtain the LOWER limit PERIMETER as an EXAMPLE to you ....YOU were supposed to do the UPPER limit of PERIMTER.....