Answer:
(1)- 1/3 (2)- 2 (3)- 1/2 (4)- 4.
Step-by-step explanation:
We have been given four images and their pre-images and we are asked to find out the factor of dilation.
(1) We have been given a triangle ABC, whose center of dilation is A. In order to find out factor of dilation we will see lengths of two corresponding sides. AB is 6 units long and A'B' is two units long. To map triangle ABC on triangle A'B'C' we have to dilate triangle ABC by a factor of 1/3 as 2 is 1/3 of 6.
Therefore, factor of dilation is 1/3.
(2) Let us find the lengths of two corresponding sides of our image and pre-image. Side ST is 6 units long and S'T' is 12 units long. To map our image of quadrilateral on pre-image we have to dilate our image by a factor of 2 as S'T' is 2 times of ST.
Therefore, factor of dilation is 2.
(3) Side QR is 6 units long and its corresponding side Q'R' is 3 units long. We can see that Q'R' is 1/2 of QR so in order to map our triangle QRS on triangle Q'R'S' we have to dilate our pre-image by a factor of 1/2.
Therefore, our factor of dilation is 1/2.
(4) Length of side AB of our image is 2 units and A'B' is 8 units long. 8 is 4 times 2. To map our pre-image ABC on our image A'B'C' we have to dilate our mage by a factor of 4.
Therefore, factor of dilation is 4.
