Te reo Māori terms
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Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
GM5-3
New NZC (2026)
NZC26-P4-MEA-MEA-P-Y9-03NZC26-P3-MEA-MEA-K-Y8-03NZC26-P3-MEA-MEA-P-Y8-04
Resources
- CorbettMaths worksheetQuestions PDF · Answers
- Beta: Various from chapter 15
Terminology
- trapezium
- parallel sides
- perpendicular height
- average
Task goals
- Identify and circle the two parallel sides of a drawn trapezium.
- Calculate the area of a trapezium from its two parallel sides and perpendicular height, using the formula (average of the parallel sides) times height.
- Explain why the area formula for a trapezium can be thought of as "the average of the parallel sides multiplied by the height."
- Work backwards from a given area and one parallel side to find the trapezium's perpendicular height.
- Find the total area of a composite shape made from a trapezium joined to a rectangle.
- Substitute a given numeric value of $x$ into algebraic expressions for a trapezium's parallel sides and height, then calculate its area.
Where this fits
What leads into this objective, and where it goes next.
You are here
Area of trapezium
Do
Finding: the perimeter of 2D shapes; the circumference of circles; the area of parallelograms, trapeziums, and kites, relating the formulae used to the formula for a rectangle
Statement▸
Year 9 · Measurement · Measuring
NZC26-P4-MEA-MEA-P-Y9-03
Also under GM5-3:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.