To determine the scale factor, we can compare the corresponding sides of the two triangles. The corresponding sides are:
Left triangle:
10 in.
15 in.
18 in.
Right triangle:
20 in.
36 in.
30 in.
To find the scale factor, we can compare the length of the corresponding sides.
First, let's compare the shortest side of the left triangle (10 in) to the shortest side of the right triangle (20 in).
10 in * (scale factor) = 20 in
Divide both sides of the equation by 10 in to solve for the scale factor:
(scale factor) = 20 in / 10 in = 2
Therefore, the scale factor used to create the copy on the right from the original on the left is 2.
Answer: B. 2
Left triangle
10 in.
15 in.
18 in.
Right Triangle
20 in.
36 in.
30 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)
A. 1/2
B. 2
C. 1 1/3
D. 1 2/3
1 answer