The two set squares are named according to the ______ present in them.

Answer

**Step-by-Step Solution:**

1. **Understanding Set Squares**: Set squares are triangular tools used in geometry for drawing angles and lines. They typically come in two common shapes.

2. **Identifying the Angles**: The first set square has angles of 90 degrees, 45 degrees, and 45 degrees. The second set square has angles of 30 degrees, 60 degrees, and 90 degrees.

3. **Naming the Set Squares**: The names of the two set squares are derived from the angles they contain. The first set square is often referred to as the "45-45-90 set square," and the second set square is known as the "30-60-90 set square."

4. **Conclusion**: Therefore, the two set squares are named according to the angles present in them.

**Final Answer**: The two set squares are named according to the **angles** present in them.

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