Question 4 (5 points)
AABC was dilated to form ADEF.
What scale factor was used in the dilation?
HELP ASAP

The scale factor was used in the dilation is 3

Step-by-step explanation:

Dilation is a kind of transformation that changes the size of figures

Image of a figure by dilation and the figure are similar

If a triangle dilated by a scale factor k then its image is similar to it, and the constant ratio between their corresponding sides is equal to k

∵ Δ ABC is dilated to form Δ DEF

∴ Δs ABC and DEF are similar

- That mean their corresponding sides have constant ratio

   equal the scale factor of dilation

∴

Size of Δ DEF is greater than size of Δ ABC, that means k > 1

∵ AC = 2 units

∵ DF = 6 units

∵

∴

∴ 3 = k

∵ The scale factor of dilation is equal to the constant ratio k

∵ k = 3

∴ The scale factor was used in the dilation is 3

the correct answer is 5 6 and 7

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc