Rigid Motion Transformation and Angles

Introduction

ABC is the pre-image of FDE. In the first activity we identified the the transformation as rule. Ry=0 T(x,y) (x-2,y-1). The measure of each angle has been identified in the triangle.s Please answer the questions below about the distances of the sides of the triangles.

Question 1

What is the sum of the interior angles of a triangle?

Question 2

Do the angles of ABC and FDE sum to 180˚?

Select all that apply
  • A
  • B
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Question 3

Does a rigid motion transformation of ABC change the angle measures of FDE? Another way to word the question: After reflecting over the x-axis and translating left then down, did the measure of the angles in the triangle change?

Select all that apply
  • A
  • B
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Question 4

Finish the following statement in the space below. Write out the entire statement. If a shape is transformed then the angles of the shape are _____________________ . If the angle remains ___________ then the shape is the ________________ (same or different) shape.