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An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

12%
22.02%
34%
44.04%

Answer:- 1

Explanation:-

Solution:

100 cm is read as 102 cm.
∴ A₁ = (100 x 100) cm² and A₂ (102 x 102) cm².
(A₂ - A₁) = [(102)² - (100)²]

= (102 + 100) x (102 - 100) = 404 cm².
∴ Percentage error =

(\frac{404}{100 \times 100} \times 100) % = 4.04 %

$\left( {\frac{{404}}{{100 \times 100}} \times 100} \right)\% = 4.04\%$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

100 cm is read as 102 cm.
∴ A₁ = (100 x 100) cm² and A₂ (102 x 102) cm².
(A₂ - A₁) = [(102)² - (100)²]

= (102 + 100) x (102 - 100)

= 404 cm².
∴ Percentage error =

(\frac{404}{100 \times 100} \times 100) % = 4.04 %

$\left( {\frac{{404}}{{100 \times 100}} \times 100} \right)\% = 4.04\%$

", "dateCreated": "7/24/2019 10:09:12 AM" } }

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