KodyB259627 KodyB259627
  • 03-11-2022
  • Mathematics
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18. ABCD is a parallelogram. Determine the length of AD.OA. 11 unitsOB. 10 unitsOC.5 unitsOD. 2.5 units

18 ABCD is a parallelogram Determine the length of ADOA 11 unitsOB 10 unitsOC5 unitsOD 25 units class=

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JenessaG729799 JenessaG729799
  • 03-11-2022

If ABCD is a parallelogram, then it means line BC = AD.

Similarly, line BA = CD

Therefore;

[tex]\begin{gathered} BC=AD \\ 2x=x+5 \\ \text{Subtract x from both sides} \\ 2x-x=x-x+5 \\ x=5 \\ \text{If x=5, and line AD=x+5, then} \\ AD=x+5 \\ AD=5+5 \\ AD=10 \end{gathered}[/tex]

The length of AD is 10 units

The answer is option B

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