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Find the area
Geometry
Level pending
In figure above, \(\angle AOB=90^\circ\), \(AC=BC\), \(OA=12 \text{ cm}\) and \(OC=6.5 \text{ cm}\). Find the area of triangle \(AOB\).
30.3
40.2
31.4
18.5
21
30
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Excel in math and science
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