1.

20. If the percentage error in the length and breadth of a rectangle is 4% and6%. Then find the % error in the area of the rectangle.​

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PERCENTAGE error in LENGTH

L

ΔL

×100=l%

Percentage error in BREADTH

B

ΔB

×100=b%

Percentage error in area

A

ΔA

×100=

L

ΔL

×100+

B

ΔB

×100

A

ΔA

×100=(l+b)%



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