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Mathematics, 27.09.2021 05:30, Aminton737
In the quadrilateral ABCD above, line AB is equal to 3 centimeters, line BC is equal to 4 centimeters, line CD is equal to 12 cm and angle ABC is equel to 90°
calculate,
the perimeter of ABCD
the area of ABCD
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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In the quadrilateral ABCD above, line AB is equal to 3 centimeters, line BC is equal to 4 centimeter...
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