Codes (Shape Codes)

In Code questions, each shape (or picture) has been assigned a code made up of letters or symbols. Your job is to crack the code — work out what each letter means — and then apply it to a new shape.

This is like being a detective! You need to compare shapes and their codes to figure out which letter represents which property.

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How Code Questions Work

You are given some shapes with their codes, like this:

Shape 1: Large black circle      → Code: A X
Shape 2: Small black circle      → Code: B X
Shape 3: Large white circle      → Code: A Y
Shape 4: Small white square      → Code: B Y Z

Then you are asked: "What is the code for a Large black square?"

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The Strategy: Compare and Eliminate

The key to code questions is comparing two shapes that differ in only one property. If two shapes have almost the same code but one letter is different, that letter must represent the property that changed.

Step-by-Step Method

Step 1: Find two shapes that are almost the same but differ in ONE property.