cniedo4uxBarmax cniedo4uxBarmax

21-11-2016
Mathematics

contestada

I have 2 similar right angle triangles, CDE and ADG. The length of CDE's hypotenuse is 1/3 the length of ADG's hypotenuse. The area of CDE is 42. What is the area of ADG?

Respuesta :

johnkellock johnkellock

23-11-2016

lengths are in ratio 1:3
areas are in ratio
1 : 3² = 1: 9
area of ADG = 9 x 42 = 378

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