Answer:
The scale factor is 0.5
It is a reduction
Step-by-step explanation:
∵ The length of the side of the first Δ = 3.4
∵ The length of the side of the second Δ = 1.7
∵ 1.7/3.4 = 1/2 = 0.5
∴ The scale factor is 0.5
∵ The second Δ is smaller than the first Δ
∴ It is a reduction
