What are the three main parts of a carpenter's square?

A carpenter's square, also known as a framing square, is an essential tool in construction and carpentry, primarily used for making square cuts and measuring angles. The three main parts of a carpenter's square are the heel, tongue, and body.

The heel is the corner where the two arms of the square meet and typically provides a starting point for measurements. The tongue is the longer arm, often used for measuring length and is marked with measurement scales. The body, also referred to as the blade, provides a straight edge for making accurate cuts and ensures that the angles remain square.

Understanding these parts is vital for using the carpenter's square effectively, whether in framing, laying out parts, or other carpentry tasks. The other choices do not appropriately describe the components of a carpenter's square, as they reference terms related to different tools or concepts in construction that do not apply here.