Question

Triangle dilations help please!

Answer 1

find the lengths of any two corresponding sides after and before the dilation

Answer 2

pick two corresponding sides which are easy to find their lengths

Answer 3

if you pick horizontal sides, you may just count the number of grids for finding the length of sides

Answer 4

how did u get 1/4 ?

Answer 5

lets pick two correspondign sides

Answer 6

how about AB and DE ?

Answer 7

find their lengths

Answer 8

length of AB = ?
length of DE = ?

Answer 9

no its okay, its a one time thing... once u learn how to find a length of a segment, you will be able to solve all other related problems

Answer 10

lets see how to find the length of side AB

Answer 11

how many grids are there between A and B ?

Answer 12

look at the given diagram and count

Answer 13

7 is very close, count again

Answer 14

thats right!
8 is the length of segment of AB

Answer 15

here A could be your home and B could be an icecreamshop

Answer 16

the distance between your home and icecreamshop is 8 meters

Answer 17

if we assume each grid is 1 meter

Answer 18

lets squeeze the earth a bit so that the distance between A and B reduces

Answer 19

5 is very close, count again

Answer 20

just count the grids occupied by the blue segment

Answer 21

try again

Answer 22

i see only 4 grids between D and E

Answer 23

i want drawing button to be replace with Geogebra

Answer 24

*Geogebra plugin

Answer 25

so we have
AB = 8
DE = 4

Answer 26

take the ratio \(\large \rm \dfrac{DE}{AB}\) for the scale factor

Answer 27

since you're shrinking the size, the scalefactor must always be less than 1

Answer 28

1/2 is right

Answer 29

yw:)