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In the figure, it is given that angle C=90∘,¯¯¯¯¯¯¯¯¯AD=¯¯¯¯¯¯¯¯¯DB,DE⊥AB,¯¯¯¯¯¯¯¯AB=20, and ¯¯¯¯¯¯¯¯AC=12. The area of quadrilateral ADEC is
- 75
- 5812
- 48
- 3712
- None of these
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