1.503m2
1.500m2
1.498m2
1.497m2
1.490m2
Correct answer is C
\(\beta\) = A2 - A1
2 X 10-5 x 2.5 = \(\frac{A_2 \times 1.5}{1.5 \times (-20 -20)}\)
A2 = 1.498m2
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