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plz help

 Dec 10, 2020
 #1
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I'll solve #5 

 

4*(4+x) = 62

16 + 4x = 36

4x = 20

x = 5

#6 is similar to #5

#7 and #8 --- just multiply radii by 2 and then multiply by 3.14

 Dec 10, 2020

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