As shown in the figure, in △ ABC, ∠ C = 90 ° de bisects AB vertically, intersects BC with E, ab = 20, AC = 12. (1) find the length of be; (2) find the area of quadrilateral Adec
(1) In the Δabc = 12ac BC = 12 × 12 × 16 = 96, s quadrilateral Adec = s △ abc-s △ EBD = 96-37.5 = 58.5
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