Find the area of a rectangular plate having length (21.3+_ 0.2)cm and width (9.80+_0.10)cm
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Area = length × breadth
A = 21.3 × 9.80 = 208.74
∆A = + ( 0.2 + 0.10 )
--
= +. ( 0.3)
Therefore area = 208.74 + 0.3
_
= 209 + 0.4
_
because of rounding off of digits
A = 21.3 × 9.80 = 208.74
∆A = + ( 0.2 + 0.10 )
--
= +. ( 0.3)
Therefore area = 208.74 + 0.3
_
= 209 + 0.4
_
because of rounding off of digits
AgarwalSahb:
have u understand my answer
@anaya
In book there is (209+_4)cm^2
208.74 is written as 209
Ok thankyou..
ur name is anaya
m i right
Yes
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