ABCD is a parallelogram with AB $=$ 8.3 cm and its perimeter is 25 cm. Then BC equals

12.5cm

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4.2cm

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17.3cm

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16.7cm

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Solution

The correct option is B 4.2cm
$2 A B + 2 B C = 25 o r 2 \times 8.3 + 2 B C = 25 o r 2 B C = 25 - 16.6 o r B C = \frac{8.4}{2} = 4.2 c m$

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