I’ll give brainlist please

1.67

Step-by-step explanation:

To do this you need to use the equation:

Scale factor = image/preimage

image would be EFGH

Preimage would be the E'F'G'H'

SF= 11/6.6

SF=1.66666667

Simplify that

SF=1.67

There's your scale factor!

Type of dilation would be reduction.

If you ever need more help, don't be afraid to reach out! I hope this helps!

b) 36

step-by-step explanation:

18 times 2 is 36

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