Homework Help: geometry

Posted by Conor on Thursday, April 28, 2011 at 9:10pm.

Two triangles are similar, and the ratio of each pair of corresponding sides is 7:3. What is the ratio of the perimeters? What is the ratio of the areas?

geometry - Reiny, Thursday, April 28, 2011 at 10:17pm
since perimeter is a linear measurement the ratio would be 7:3 , but
the ratio of their areas is 7^2 : 3^2 = 49 : 9

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