Question

The side of a square is(14±0.2)cm.Calcute the area of the square with error limits.​

Answer 1

Explanation:

s=14cm

∆s=0.2cm

A=s²=14²cm²

∆A/A=∆s/s

∆A=(0.2 X 14²)/14=7cm

therefore area=(196±7)cm