The Similarity Trap

Young Math BrainsCBSE Class 10 Board Prep App
Explore Full App →
TrianglesVideo challenge · TRIA01

The Similarity Trap

CBSE Class 10 · Solve it one decision at a time. A wrong pick earns a nudge, never the answer.

Step 1 of 5

The problem

In △ABC\triangle ABC, DD lies on ABAB and EE lies on ACAC such that AD=4 cmAD = 4\text{ cm}, DB=8 cmDB = 8\text{ cm}, AE=6 cmAE = 6\text{ cm}, and EC=2 cmEC = 2\text{ cm}. If DE=5 cmDE = 5\text{ cm}, find the length of BCBC.

Step 1 · Your move

What are the total lengths of sides ABAB and ACAC?

4 cm8 cm6 cm2 cm5 cmBC = ?ABCDE
Helpful?