Math Problem Statement

Find pairs of congruent triangles, angles, proportional sides, and calculate the lengths of sides BA, BC, and BD in a triangle ABC divided into two smaller right triangles by segment CD, given AC = 18 cm and BC = 32 cm.

Solution

The image shows a triangle ABC\triangle ABC divided into two smaller right triangles by segment CD\overline{CD}. There are tasks written beneath the diagram involving identifying congruent triangles, angles, and side lengths, as well as finding proportional relationships.

Let me analyze the given problem and extract the details:

Analysis:

  1. Triangle Description:

    • ABC\triangle ABC is divided by CD\overline{CD} into ADC\triangle ADC and BDC\triangle BDC.
    • Right angles are marked at ACD\angle ACD and BCD\angle BCD.
    • Dimensions provided:
      • AC=18cmAC = 18 \, \text{cm}
      • BC=32cmBC = 32 \, \text{cm}
  2. Questions (Translated from Image): a. Identify congruent triangles within the diagram. b. Identify pairs of equal angles in the triangles. c. List pairs of proportional sides for similar triangles. d. Find the lengths of AB,BC,\overline{AB}, \overline{BC}, and BD\overline{BD}.

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Math Problem Analysis

Mathematical Concepts

Geometry
Congruent Triangles
Proportional Relationships
Pythagorean Theorem

Formulas

Pythagorean theorem: a^2 + b^2 = c^2
Properties of similar triangles: Corresponding sides are proportional

Theorems

Triangle Similarity Theorems (AA similarity)
Pythagorean Theorem

Suitable Grade Level

Grades 8-10