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Work out the area of this semicircle. Take pi to be 3.142 and give your answer to 2 decimal places.
![Work Out The Area Of This Semicircle Take Pi To Be 3142 And Give Your Answer To 2 Decimal Places class=](https://us-static.z-dn.net/files/d39/43c3d8ddef1a1996127c4b5e30e9b390.png)