3 Dakota has a mirror in the shape of a trapezoid. She
started by hanging the mirror in one location. Then she
decided to hang the mirror in a different location.
A. Complete the drawing of the mirror in its new location.
B. How could Dakota move the mirror from the first location
to the second location?
C. How have the parallel sides of the mirror changed?
D. Describe how the side lengths and angle measures were affected when
Dakota moved the mirror. How do you know?

answer: i guess 105 degrees?

step-by-step explanation:

where's the diagram?

step-by-step explanation:

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3