1.

The radius of a circle is measured to be (10.8+-0.3)m. Calcualte the area of the circle.

Answer»


SOLUTION :AREA `=A+DeltaA.A=125xx75=9375=9375cm^(2), DeltaA//a=Deltal//l+Deltab//b=(0.4//125)+(0.5//75)`
`DeltaA//a=92.5//9375, DeltaA=92.5,` Area `=(9375+-92.5)CM^(2)`


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