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If the perimeter of the quadrilateral ABCD is 19 cm. Find AB

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4.6 cm

5.5 cm

3.5 cm

4 cm

answer is B.

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Detailed Solution

Perimeter of the quadrilateral = Sum of all the sides
19 cm = AB + BC + CD + DA
19 cm = AB + 5 + 4.5 + 5.5
AB = 19 - 15
AB = 4 cm

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