In the quadrilateral ABCD: DE = 2 cm, BF = 4.5 cm and AC = 9 cm find the area of the quadrilateral ABCD
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Answered by
1
Answer:
515.4
Step-by-step explanation:
9+2+4.5+x=520
11+4.5+x=520
56/10+x=520
56+10x=5200
10x=5200-56
x=5144/10
x=514.4
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