Geometry Challenge 1598: Inradius Ratio with Median BM in a Right-Angled Triangle

Test your geometry skills with this STEM-focused problem. Explore how the median BM, drawn to midpoint M of the hypotenuse, reveals a surprising inradius ratio in two splitting triangles.

Problem 1598 Statement

In triangle ABC, with AB = 3, BC = 4, and a right angle at B, let M be the midpoint of hypotenuse AC. Find the ratio of the inradii of triangles ABM and BMC.

STEM geometry problem 1598 showing a right-angled triangle with median BM to midpoint M and inradius ratio challenge

Median BM

Splits the heart of triangle,

Ratios bloom within.

Uncover and share solutions to this problem.


STEM Approach 1598: Inradius Ratio with Median BM

S — Science

Relate median BM to the center of mass in a uniform triangular plate.

Question: Where is the centroid along BM?

How would the inradii relate to areas and balancing forces?

T — Technology

Use Geogebra or Geometry Expressions or Desmos to model triangle ABC, draw BM, and compare inradii of ABM and BMC.

Compute and visually compare inradii of triangles ABM and BMC.

E — Engineering

Explore how splitting a triangle with a median affects structural balance in frameworks and bridge supports.

In trusses and frameworks, medians and centroids determine stress points.

M — Mathematics

Connect to:

  • Median length theorems
  • Inradius and area relationships
  • Pythagorean theorem

Inquiry: How does dividing by a median affect other properties?


STEM Geometry Challenge 1598: Unlock the Power of Problem-Solving!

Flyer of Geometry problem 1598 involving Right triangle, Median, hypotenuse, ratio, inradii, areas – Explore Geometry Through a STEM Perspective