Compare the original trapezoid and the enlarged trapezoid.
What is the perimeter of trapezoid ABCD?
A
4 cm
B
2 cm
D
2 cm
c
What is the perimeter of trapezoid WXYZ?
5 cm
w
10 cm
Х
What is the scale factor for this enlargement?
5 cm
Z
5 cm
SY
12.5 cm
Side
Length
Side Side
Length Length
4 cm 2cm
10 cm 5 cm
2 cm
5 cm
Side
Perimeter
Length
5 cm
12.5 cm 2
Intro
Done
Previous Activity

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

df =

both have same length

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.

you can use a^2+ b^2=c^2