Math Problem Statement

Polygon ABCD with vertices at A(−4, 6), B(−2, 2), C(4, −2), D(4, 4) is dilated using a scale factor of 4 over 3 to create polygon A′B′C′D′. Determine the vertices of polygon A′B′C′D′.

Solution

To determine the vertices of the dilated polygon ABCDA'B'C'D', we apply the given scale factor of 43\frac{4}{3} to each vertex of the original polygon ABCDABCD.

Given vertices of polygon ABCDABCD:

  • A(4,6)A(-4, 6)
  • B(2,2)B(-2, 2)
  • C(4,2)C(4, -2)
  • D(4,4)D(4, 4)

To calculate the vertices of polygon ABCDA'B'C'D', multiply each coordinate by the scale factor 43\frac{4}{3}.

Calculating the new vertices:

  1. Vertex A: A=(43×4,43×6)=(163,8)A' = \left(\frac{4}{3} \times -4, \frac{4}{3} \times 6\right) = \left(-\frac{16}{3}, 8\right)

  2. Vertex B: B=(43×2,43×2)=(83,83)B' = \left(\frac{4}{3} \times -2, \frac{4}{3} \times 2\right) = \left(-\frac{8}{3}, \frac{8}{3}\right)

  3. Vertex C: C=(43×4,43×2)=(163,83)C' = \left(\frac{4}{3} \times 4, \frac{4}{3} \times -2\right) = \left(\frac{16}{3}, -\frac{8}{3}\right)

  4. Vertex D: D=(43×4,43×4)=(163,163)D' = \left(\frac{4}{3} \times 4, \frac{4}{3} \times 4\right) = \left(\frac{16}{3}, \frac{16}{3}\right)

Vertices of polygon ABCDA'B'C'D':

  • A(163,8)A' \left(-\frac{16}{3}, 8\right)
  • B(83,83)B' \left(-\frac{8}{3}, \frac{8}{3}\right)
  • C(163,83)C' \left(\frac{16}{3}, -\frac{8}{3}\right)
  • D(163,163)D' \left(\frac{16}{3}, \frac{16}{3}\right)

Would you like more details or have any questions?

Here are some related questions for further exploration:

  1. What happens to the perimeter of the polygon after the dilation?
  2. How does the area of the polygon change with the dilation?
  3. How do you determine the center of dilation in this problem?
  4. Can you find the equation of the line passing through points AA and BB?
  5. How does a dilation affect the orientation of a polygon?

Tip: The dilation of a polygon multiplies all distances from the center of dilation by the scale factor, preserving the shape but changing the size.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Geometry
Dilations
Coordinate Geometry

Formulas

-

Theorems

-

Suitable Grade Level

Grades 9-12