Mathematics · Geometry
In a trapezium ABCD, AB is parallel to DC. It is given that AB > DC and the diagonals AC and BD intersect at O. If AO = 3x - 15, OB = x + 9, OC = x - 5, and OD = 5, and x has two possible values x1 and x2, then the value of (x12 + x22) is:
- 173
- 261✓
- 356
- 445
Correct answer
61
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