Answer:
Using a straight edge and pencil is one way to create a straight line on a roof, but it may not be the most efficient or effective method depending on the size and shape of the roof.
A chalk line is a tool commonly used for creating straight lines on large surfaces, such as roofs. It consists of a long string coated in colored chalk powder that is pulled taut between two points on the roof. When the string is released and snaps back onto the roof, it leaves a straight line of chalk powder that can be used as a guide for cutting or marking.
Using a chalk line is generally faster and more accurate than using a straight edge and pencil, especially for long distances. However, it may not be appropriate for all situations, such as if the roof surface is too uneven or if the chalk powder would be difficult to clean up. In these cases, using a straight edge and pencil may be a better option.
Step-by-step explanation: