What is the total length of a line where different segments measure $8.26\;cm,2.3\;cm,2.89\;cm$ and $7.762\;cm?$ - Clay6.com, a Free resource for your JEE, AIPMT and Board Exam preparation

Since significant place is the tenth place, rounding off the individual value to nearest hundredth (one place more) we have 8.26+2.3+2.89+7.76 = 21.21 cm.