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December 9th, 2016, 07:30 AM   #1
Joined: Aug 2016
From: Santos-SP / BRASIL

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I need help!

ABC is a triangle with sides measuring AC = 13 cm, BC = 12 cm and AB = 5 cm and is the midpoint of the side AC¯. Consider the line segment MN¯ perpendicular to AC¯, where N is a side point CB¯.

Determine the perimeter, in cm, of the AMNB quad.
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Samuel Leite is offline  
December 9th, 2016, 10:33 AM   #2
Math Team
Joined: Jul 2011
From: Texas

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the small triangle NMC is similar to the large triangle ABC ... corresponding sides are proportional.
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