Errors in measurementEasy
Question
The radius of a disc is 1.2 cm. Its area according to idea of significant figures, will be given by :-
Options
A.4.5216 cm2
B.4.521 cm2
C.4.52 cm2
D.4.5 cm2
Solution
Area of disk
= πR2 = (3.14)(1.2)2 = 4.5216 = 4.5 cm2.
= πR2 = (3.14)(1.2)2 = 4.5216 = 4.5 cm2.
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