Question 1 Which of the following dilations would result in an enlargement? Select ALL 1 point
that apply. *
Triangle ABC being dilated by a scale factor of 1
Square ABCD being dilated by a scale factor of 2.5
Trapezoid DEFG being dilated by a scale factor of 0.5
Rectangle QRST being dilated by a scale factor of 1.2
Segment OW being dilated by a scale factor of 2.25

MR CRABS

Step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584