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Effectus [21]
2 years ago
5

What is the radius of a semi circle when the area is 20cm

Mathematics
1 answer:
vazorg [7]2 years ago
6 0
 hello : 
the area of the circle is : 40 cm²
40 = <span>πr²
r² = 40/(3.14 )
r² = 12.73 cm</span>
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