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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Computing
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Area of Triangles & Parallelograms

Mathematics · Measurement · procedural

Calculate the area of parallelograms and triangles using formulae (A = b × h for parallelograms, A = ½ × b × h for triangles)

What mastery looks like

  • Calculate the area of a parallelogram with base 8 cm and height 5 cm
  • Calculate the area of a triangle with base 12 cm and height 7 cm
  • Explain why the area of a triangle is half the area of a related parallelogram

Check your understanding

If Area of Triangles & Parallelograms is cutting triangular pieces of cloth where the base is 8 cm and the height is 5 cm, can they use a formula to work out the area of each piece?