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

What is the radius of a semi circle when the area is 20cm
asked 10.1k views
1 vote
What is the radius of a semi circle when the area is 20cm

asked
User Ariel Malka
by
7.5k points

1 Answer

3 votes
hello :
the area of the circle is : 40 cm²
40 = πr²
r² = 40/(3.14 )
r² = 12.73 cm
answered
User JackLock
by
8.0k points
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