Skip to content

A NSW Government website

Welcome to the NSW Curriculum website

NSW Curriculum
NSW Education Standards Authority

K–10Mathematics K–10 Syllabus (2022)

Implementation from 2024
Expand for detailed implementation advice

Content

Stage 4

Area
Develop and use formulas to find the area of rectangles, triangles and parallelograms to solve problems
  • Apply the formula to find the area of a rectangle or square: A=lb, where l is the length and b is the breadth (or width) of the rectangle or square

  • Develop and apply the formula to find the area of a triangle: A= 12bh, where b is the base length and h is the perpendicular height

  • Develop and apply the formula to find the area of a parallelogram: A= bh where b is the base length and h is the perpendicular height

  • Calculate the area of composite figures that can be dissected into Loading , Loading , parallelograms or Loading  to solve problems

Develop and use the formula to find the area of circles and sectors to solve problems
  • Develop and apply the formula to find the area of a circle: A=πr2, where r is the length of the radius

  • Explain how the area of a sector can be developed from the area of a circle A=θ360×πr2

  • Find the area of quadrants, semicircles and sectors, and apply these formulas in the context of real-life problems

  • Calculate the areas of Loading  involving quadrants, semicircles and sectors to solve problems

Develop and use the formulas to find the area of trapeziums, rhombuses and kites to solve problems
  • Develop and apply the formula to find the area of a kite or rhombus: A=12xy, where x and y are the lengths of the diagonals

  • Develop and apply the formula to find the area of a trapezium: A=h2a+b, where h is the perpendicular height and a and b are the lengths of parallel sides

  • Calculate the area of composite shapes involving trapeziums, kites and rhombuses to solve problems

Choose appropriate units of measurement for area and convert between units
  • Choose an appropriate unit to measure the area of different Loading  and surfaces, and justify the choice

  • Convert between metric units of area using 1 cm2=100 mm2, 1 m2=10 000 cm2, 1 ha=10 000 m2 and 1 km2=1 000 000 m2=100 ha

Related files