Question

In the diagram, ARST-

AXYZ. Find the scale factor from ARST to AXYZ.
Z
T
54
12
27
6
R
10
S
Х
45
The scale factor is

Answer 1

The scale factor is 4.5

Explanation:

Scale factor from ∆RST to ∆XYZ = side length of ∆XYZ / corresponding side length of ∆RST

Thus:

XY corresponds to RS

XY = 45

RS = 10

Therefore:

Scale factor = 45/10 = 4.5

Scale factor from ∆RST to ∆XYZ = 4.5