Which tool is commonly used to verify right angles quickly on site and is compact?

• A. Speed Square
• B. Framing Square
• C. Measuring Tape
• D. Needle Nose Pliers

Answer: (A)

Verifying right angles quickly on site relies on a tool designed specifically to indicate a true 90-degree corner. A speed square fits in one hand, has a built-in 90-degree corner, and includes guides for common angles. To check, place the square's edge along one side of the workpiece; if the adjacent edge sits square against the other side, the angle is right. Its compact size and one-handed use make it ideal for fast checks and for acting as a saw guide when making perpendicular cuts. That portability is why it’s favored for quick on-site checks.

By comparison, a framing square is larger and not as convenient for quick, one-handed checks; a measuring tape measures length, not angles; needle-nose pliers don’t provide any angle reference.