Help me with this VECTOR?

Question

here is the list:

*all values in meters

graphical method = 0.117 m

mathematical method= 5.63m

actual measuring method=5.56m

in graphical, i had a scale of 0.5cm=1 step

i tried to multiply

11.7 cm * 0.5 = 5.85 (which is almost precise to 5.63 and 5.56)

what would i do to make my answer precise? HELP..thx

Answer 1

graphical method can nvere be precisely accurate.

To be more accurate you need a bigger scale

Answer 2

your scale has got bigger step 0.5

To measure precise you should have more steps such as 0.1 cms

It is a problem related to Resolution.