Q38Fill in the blanks
If the diagonal d of a quadrilateral is doubled and the heights h 1 and h 2 falling on d are halved, then the area of quadrilateral is __________.
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A (0, 7.5) B (4, 5) C (7.5, 2.5) D (11, 0) E (14.5, 6.5) F (18, 9.5)
If the diagonal d of a quadrilateral is doubled and the heights h 1 and h 2 falling on d are halved, then the area of quadrilateral is __________.
A (0, 7.5) B (4, 5) C (7.5, 2.5) D (11, 0) E (14.5, 6.5) F (18, 9.5)