NCERT Solutions for Class 11 Science Properties of matter 1
Important Board Questions
Dimension and Measurement
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Numerical And Long Questions
The sides of a rectangle are (10..5 ± 0.2) cm and (5.2 ± 0.1) cm. Calculate its perimeter with error limits.
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P = 2 (l + b) ± 2 (∆l + ∆b)
= 2(10.5 + 5.2) ± 2(0.2 + 0.1)
= (31.4 ± 0.6) cm.