# Answer to Question #5986 in Geometry for taylor

Question #5986

Fred is rebuilding his mailbox post. The horizontal portion is 12 inches, where a is 10 inches. The vertical post is 43 inches, where b is 15 inches. Those two pieces meet at a right angle. What is the minimum length necessary for the angled support, c?

Expert's answer

minimum lenght c=sqrt(a*a+b*b)=sqrt(10*10+15*15)=sqrt(100+225)=sqrt(325) ~ 18.03

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