Math Problem Statement

A rectangle ABCD has sides AB = CD = 34 cm. E is a point on CD such that CE = 9 cm and ED = 25 cm. AE is perpendicular to EB. What is the length of BC?

Solution

The problem describes a rectangle ABCDABCD with the following dimensions and relationships:

  • Sides: AB=CD=34cmAB = CD = 34 \, \text{cm}
  • EE is a point on side CDCD such that CE=9cmCE = 9 \, \text{cm} and ED=25cmED = 25 \, \text{cm} (since CD=34cmCD = 34 \, \text{cm}, 9+25=34cm9 + 25 = 34 \, \text{cm}).
  • AEAE is perpendicular to diagonal EBEB.

The goal is to find the length of BCBC.

Solution approach:

  1. Understand the rectangle: In any rectangle, opposite sides are equal, and all angles are 90 degrees.

  2. Geometrical setup:

    • EE is a point on CDCD, and a perpendicular line AEAE from AA meets EBEB.
    • The problem suggests a geometric configuration where triangles or Pythagoras' theorem may come into play, given that AEEBAE \perp EB.
  3. Use of Pythagoras' Theorem:

    • In triangle AEBAEB, since AEAE is perpendicular to EBEB, it forms a right triangle. We can apply the Pythagorean theorem to solve for lengths in this triangle.
  4. Breaking down diagonals:

    • Use the diagonal properties of the rectangle to help relate the sides.

Let's solve step-by-step:

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Math Problem Analysis

Mathematical Concepts

Geometry
Right Triangles
Pythagoras' Theorem

Formulas

Pythagoras' Theorem: a^2 + b^2 = c^2

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 9-12