(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

ABCD is a square and on side BC an equalaterial triangle is made extending to vertex E and another is made on line DC extending to vertex F. Prove that ECD is congruent to BCF.

2. Relevant equations

Proof is all about using algerbra to prove somthing right?

If it's congruent it has to fit into 4 congruent rules:

SSS

ASA

SAS

RHS

3. The attempt at a solution

Well DC = BC

but where now. I can descirbe it in words, but I believe u need to use albebra to prove it :(

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# Homework Help: GCSE Proof os square with equalaterial triangles

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