1.

The sides of a rectangle are (10.5 +- 0.2) cm and ( 5.2 +- 0.1 ) cm. Calculate its perimeter with error limits .

Answer»

SOLUTION :`P=2(l+b)PM2(Deltal+Deltab)`
`=2(10.5+5.2)pm2(0.2+0.1)`
`=(3.14pm0.6)CM`


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