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In Figure, /A O B=90^@,\ A C=B C ,\ O A=...

In Figure, `/_A O B=90^@,\ A C=B C ,\ O A=12\ c m\ a n d\ O C=6. 5 c m`. Find the area of ` /_\A O B`.

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RD SHARMA ENGLISH-AREA OF PARALLELOGRAMS AND TRIANGLES-All Questions
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