Look at this math problem ~ ~ ~ ~ ~ ~ ~ - Training Enrollment Network

Look at this math problem ~ ~ ~ ~ ~ ~ ~

Solution: Let the radius of a closed circle be r.

Then: 2*3. 14*r*2=62.8.

D: r = 5cm

So the area of each circle is 3. 14*5*5=78.5 square centimeters.

The total enclosed area is 78.5*2= 157 cm2.

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