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3 years ago

12

ALOT OF POINTS PLS ANSWER! :)

2 answers:

earnstyle [38]3 years ago

8 0

Answer:

12km

Step-by-step explanation:

(r + 8)^2= r^2+ 16^2

r^2+ 16r + 64 = r^2+ 256

16r = 192

r=192/16

r = 12

LenaWriter [7]3 years ago

4 0

Answer:

12

Step-by-step explanation:

(r + 8)² = r² + 16²

r² + 16r + 64 = r² + 256

16r = 192

r = 12

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