List and describe common line types in technical drawing. Name five ICT tools for home communication. Explain the importance of materials in production. Differentiate between natural and synthetic mat

36)

• Visible line: A thick, continuous line used to represent the visible edges and outlines of an object.
• Hidden line: A medium-thick, dashed line used to represent edges and features that are not visible from the current view.
• Centre line: A thin line made of alternating long and short dashes, used to indicate the centre of symmetrical objects or circles.

37)
Five ICT tools used at home for communication purposes:

• Mobile phone
• Computer/Laptop
• Internet
• Email
• Social media platforms

38)
Five importance of materials used in production:

• They determine the quality and performance of the final product.
• They influence the cost of production and the final selling price.
• They affect the manufacturing processes and techniques that can be used.
• They contribute to the durability and lifespan of the product.
• They impact the aesthetics and design of the product.

39)

• Natural materials are found in nature and are used with minimal processing.
  • Example: Wood, cotton.
• Synthetic materials are man-made, produced through chemical processes.
  • Example: Plastic, nylon.

40)
Three marking out tools:

• Scriber
• Steel rule
• Try square