Math Problem Statement

What is the answer

Rotate the figure 90° clockwise. Then, mark the statements as true or false.

Solution

In this problem, you're asked to rotate the figure 90° clockwise and then analyze the two statements:

Step-by-Step Solution:

  1. Identifying Initial Coordinates:

    • Point PP is at (-7, 0).
    • Point QQ is at (0, 0).
    • Point RR is at (0, -4).
  2. Applying a 90° Clockwise Rotation:

    • When rotating a point (x,y)(x, y) 90° clockwise around the origin, the new coordinates become (y,x)(y, -x).

    Let's apply this transformation to each point:

    • Point P(7,0)P(-7, 0) becomes P(0,7)P'(0, 7).
    • Point Q(0,0)Q(0, 0) stays Q(0,0)Q'(0, 0).
    • Point R(0,4)R(0, -4) becomes R(4,0)R'(4, 0).
  3. New Figure: After rotating the figure, the new positions of P,Q,RP', Q', R' form a rotated shape on the graph.

Evaluating the Statements:

  • Statement 1: "The orientation of the figure did not change."

    • False: A 90° rotation changes the orientation of the figure.
  • Statement 2: "The corresponding angle measures in the pre-image and image are congruent."

    • True: A rotation preserves angles, so the corresponding angles are congruent.

Final Answers:

  1. The orientation of the figure did change (False).
  2. The corresponding angle measures are congruent (True).

Would you like more details or have any questions?

Here are 5 related questions for further practice:

  1. What happens when you rotate a figure 180° clockwise?
  2. How would you rotate a point counterclockwise by 90°?
  3. Does rotation affect the size of the figure?
  4. What transformation could you apply to achieve the same orientation without rotation?
  5. How do reflections differ from rotations?

Tip: Always check how rotations change both the orientation and the coordinates of points systematically.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Rotations
Transformations

Formulas

90° Clockwise Rotation: (x, y) → (y, -x)

Theorems

Rotation Theorem: A rotation is a rigid transformation that preserves distance and angle measures.

Suitable Grade Level

Grade 8