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Instruction - PowerPoint PPT Presentation


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Instruction. Key Concepts. Two figures are similar if and only if there is a similarity transformation that maps one figure onto the other. Rigid Motions: Glide reflections, reflections, translations, and rotations are the only four rigid motions or isometries in a plane. Instruction.

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slide1

Instruction

Key Concepts

  • Two figures are similar if and only if there is a similarity transformation that maps one figure onto the other.
  • Rigid Motions: Glide reflections, reflections, translations, and rotations are the only four rigid motions or isometries in a plane.
problem 1

Instruction

Problem #1

ΔDEF has vertices D(2, 0), E(1, 4), and F(4, 2).

What is the image of ΔDEF when you apply the composition ?

problem 11

Instruction

Problem #1

ΔDEF has vertices D(2, 0), E(1, 4), and F(4, 2).

What is the image of ΔDEF when you apply the composition ?

problem 2

Instruction

Problem #2

What is a composition of rigid motions and a dilation that maps ΔRST to ΔPYZ?

slide5

Instruction

AA~ of Triangles

slide6

Instruction

Guided Practice

  • Are these figures similar? Explain.
slide7

Instruction

Guided Practice

  • Is there a similarity transformation that maps ΔJKL to ΔRST? If so, identify the similarity transformation.
slide8

Instruction

Guided Practice

  • What is the similarity transformation of the following image?
slide9

Instruction

Guided Practice