10 in.
15 in.
20 in.
18 in.
30 in.
36 in.
Randee draws these two triangles with lengths given in centimeters. What scale factor does she use to create the copy on the right from the original on the left?
(1 point)
0 1}
0 를
0 12
2
To determine the scale factor, we need to compare the corresponding side lengths of the two triangles.
For the first triangle, the corresponding side lengths are:
Original: 10 in., 15 in., 20 in.
Copy: 18 in., 30 in., 36 in.
To find the scale factor for the first side, we divide the length of the corresponding side on the copy by the length on the original:
Scale factor = (18 in.)/(10 in.) = 1.8
Using the same process for the other side lengths, we find:
Scale factor for the second side = (30 in.)/(15 in.) = 2
Scale factor for the third side = (36 in.)/(20 in.) = 1.8
Since each corresponding side has a different scale factor, the answer depends on which side we are comparing. However, the most common choice is to use the scale factor for the longest side, which in this case is 2.
Therefore, Randee used a scale factor of 2 to create the copy on the right from the original on the left.