Which type of angle do construction workers use when building to make sure that the walls and floors of a building are perpendicular

Perpendiculars form right angles which are = to 90 degrees.

Construction workers use a right angle to ensure that the walls and floors of a building are perpendicular to each other. A right angle measures exactly 90 degrees, forming a perfect L shape. To check for perpendicularity, construction workers often use tools such as a framing square or a carpenter's square, which have a 90-degree angle built into them. They align these tools with the edges of the walls or floors to ensure that they meet at right angles.

Construction workers use a right angle, also known as a 90-degree angle, to ensure that walls and floors are perpendicular to each other. A right angle forms when two lines or surfaces meet and create a 90-degree angle, which is a perfect square corner. Here's how construction workers achieve perpendicularity using a right angle:

1. Using a measuring tape or laser measuring tools, the construction worker first measures and marks one side of the wall or floor where they want to create a perpendicular angle.

2. From the marked point, they measure and mark a distance equal to the desired length of the adjacent wall or floor.

3. Next, they use a right-angle measuring tool such as a framing square, speed square, or combination square. These tools have a long edge (known as the "blade") and a shorter edge (known as the "tongue") that meet at a 90-degree angle.

4. Placing the blade along the first marked line, they "butt" the tongue against the second marked point, ensuring that the two lines form a perfect 90-degree angle.

5. With the square held firmly in place, they use a pencil or a marker to trace along the outer edge of the square. This technique creates a straight line that represents a perpendicular wall or floor.

By using a right-angle measuring tool, construction workers can easily verify and ensure that walls and floors are perpendicular, providing structural stability and a square layout for the building.