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5 votes
May you help me with this please ?

May you help me with this please ?-example-1

1 Answer

3 votes

r=(|AB|)/(2)\\ r=(√((12-4)^2+(5-9)^2))/(2)\\ r=(√(64+16))/(2)\\ r=(√(80))/(2)\\ r=(4\sqrt5)/(2)\\ r=2\sqrt5
User Joshua Tompkins
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