Question

The error in the measurement of the
sides of a rectangle is 1%. The error in
the measurement of its area is
(A) 1% (B) 1/2%
(C) 2%
(D) None of the above.​

Answer 1

Answer:

2%

Explanation:

So, the formula to calculate the error in the area will be (Error in length) ×1 + (Error in breadth)×1. So the answer will be (1% × 1) + (1% × 1) = 2%.

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Answer 2

Answer:

area of the triangle =1/2*base*height

Explanation:

so error in area =deltb/b+delta/h (since the error in sides are 1%)

dela/a=1+1=2%