Math Problem Statement

Assume that the figures shown to the right are similar. Given the lengths of sides and measures of angles in the left figure, what information is known about the right figure?

Solution

The image you uploaded contains a geometry problem involving two similar polygons, as well as the application of proportional relationships between their sides.

Here's a breakdown of the solution process:

  1. Angle Correspondence:

    • The two polygons are similar, meaning their corresponding angles are equal.
    • Since mD=32m \angle D = 32^\circ in the left polygon, the corresponding angle in the right polygon is I\angle I, which also measures 3232^\circ.
  2. Side Correspondence:

    • AB\overline{AB} from the left polygon corresponds to FG\overline{FG} from the right polygon.
    • CD\overline{CD} from the left polygon corresponds to HI\overline{HI} from the right polygon.
  3. Proportions Between Corresponding Sides:

    • Since the polygons are similar, the sides are proportional. We can set up the following ratio: length of ABlength of FG=length of CDlength of HI\frac{\text{length of } \overline{AB}}{\text{length of } \overline{FG}} = \frac{\text{length of } \overline{CD}}{\text{length of } \overline{HI}}
    • Substituting the known values: 8050=48x\frac{80}{50} = \frac{48}{x}
    • Solving for xx (the length of HI\overline{HI}) by cross-multiplying: 80×x=50×4880x=2400x=240080=3080 \times x = 50 \times 48 \quad \Rightarrow \quad 80x = 2400 \quad \Rightarrow \quad x = \frac{2400}{80} = 30 Thus, the length of HI\overline{HI} is 3030 units.

Final Answer:

The length of side HI\overline{HI} in the right figure is 30 units.

Let me know if you'd like more details or clarifications!

Here are five related questions:

  1. What would happen if the polygons were not similar?
  2. How are proportions used in other geometric problems involving similar shapes?
  3. What are the key differences between similar and congruent polygons?
  4. How can we verify that two polygons are similar based solely on side lengths?
  5. What are some applications of similar polygons in real-world problems?

Tip:

Always ensure that you match corresponding angles and sides when working with similar polygons to avoid incorrect proportions.

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Math Problem Analysis

Mathematical Concepts

Similar Polygons
Proportions
Geometry

Formulas

Length of AB / Length of FG = Length of CD / Length of HI
Cross-multiplication to solve proportions

Theorems

Similar Polygons Theorem

Suitable Grade Level

Grades 8-10