Translate Triangles

• Reflect △ABC across the x-axis, then translate it down 2

• Reflect △ABC across the y-axis, then translate it down 2

• Reflect △ABC across the x-axis, then translate it up 2

• Reflect △ABC across the y-axis, then translate it up 2

Plot A(4,1) B(5,4) C(1,2). Reflect it over the x-axis, then translate it 3 units left. What are the coordinates of A'B'C'?

• A' (-1, -1) B' (-2, -4) C' (2, -2)

• A' (4, -4) B' (5, -7) C' (1, -5)

• A' (-7, 1) B' (-8, 4) C' (-4, 2)

• A' (1, -1) B' (2, -4) C' (-2, -2)

Two triangles are shown on the coordinate grid. Which sequence of transformations shows that \Delta ABC\cong\Delta DEF

• Reflect △ABC across the x-axis, then translate it down 1

• Reflect △ABC across the x-axis, then translate it up 1

• Reflect △ABC across the y-axis, then translate it down 1

• Reflect △ABC across the y-axis, then translate it up 1

• A

• B

• C

• D

Two triangles are shown on the coordinate grid. Which sequence of transformations shows that ΔABC≅ΔDEF

• Reflect △ABC across the x-axis, then translate it right 1

• Reflect △ABC across the y-axis, then translate it right 1

• Reflect △ABC across the x-axis, then translate it left 1

• Reflect △ABC across the y-axis, then translate it left 1

Which of these triangles are translations of Triangle A?

• Triangle B

• Triangle C

• Triangle D

• Triangle E

• Triangle F

What rigid transformation is this?

• Translation

• Rotation

• Reflection

Which sequence describes a rigid transformation that takes Triangle A to Triangle B?

• Translate three units left and two units down

• Translate three units right and two units up

• Reflect triangle A horizontally at the point of the right angle.

• Rotate 180 degrees clockwise at the point of the right angle.

Does the picture show a rigid transformation?

• Yes

• No

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24