Geometry and trigonometry.

Shape, angle and scale connect drawings to vectors and mechanisms.

Learning outcome: Resolve a vector and use a dimensioned sketch to check a result.

Resolve a vector and use a dimensioned sketch to check a result. Diagram is schematic and not to scale.

Core ideas

Build the model

similar triangles and scale.

sine, cosine and tangent.

coordinates, angle convention and sign.

Engineering bridge

Where it is used

geometry, graphs, and trigonometry
statics and equilibrium

Original Lilerno structure and wording. Visuals are conceptual, inputs are not a design specification, and practical work requires appropriate supervision.