Geometry

Geometry
- Perimeter and area
  In this National 4 Lifeskills Maths study guide, you can revise how to find the perimeter and area of triangles, quadrilaterals (rectangle, parallelogram, rhombus, kite and square), circles, arcs, sectors and composite shapes can all be calculated using relevant formulae.
- Volume
  Using relevant formulae the volume and surface area of cuboids, cubes, prisms, cylinders, spheres, cones and composite shapes can be calculated.
- Pythagoras
  Pythagoras’ theorem can be used to calculate the length of the third side of a right angled triangle when given the lengths of the other two sides.
- Gradient of a slope
  Gradient is a measure of how steep a slope or a line is. Gradients can be calculated by dividing the vertical height by the horizontal distance.
- Scale Factor
  A scale factor can be used to enlarge or reduce a shape. A missing length on a reduction/enlargement figure can be calculated by finding its linear scale factor.
Video playlist
- A gymnast describes and practises her floor routine. Video
  A gymnast talks about her routine. Includes a floor routine and the associated commentary.
- A gymnast on the asymmetric bars. Video
  A gymnast shows her moves on the asymmetric bars and describes her routine.
- An Approximate History of Co-ordinates. Video
  An animated look at the work of Rene Descartes and the cartesian co-ordinate system.
- The Approximate History of Pythagoras. Video
  An animated guide to the mathematical ideas of Pythagoras.

Video playlist

Links