WORKSHOP SCIENCE AND CALCULATION

- Geometrical construction & theorem:
division of line segment, parallel lines, similar angles, perpendicular lines, isosceles triangleand right angled triangle.

• Area of cut-out regular surfaces: circle and segment and sector of circle
• Area of irregular surfaces.
• Application related to shop problems.
• Volume of cut-out solids: hollow cylinders, frustum of cone, block section.
• Volume of simple machine blocks.
• Material weight and cost problems related to trade. 
• Finding the value of unknown sides and angles of a triangle by Trigonometrical method.
• Finding height and distance by trigonometry.
• Application of trigonometry in shop problems. (viz. taper angle calculation).