Te reo Māori terms
click each term to open in Te AkaLearning objective overview
Master Teaching Guide coverage for this objective.
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.
Teaching guidance
- Formula: Area = ((a + b) / 2) x h, where a and b are the parallel sides
- Students should be able to explain how the trapezium formula is
- derived from the area of a rectangle.
Key skills
- Area
- Trapezium
Quick stats
- 81 total questions
- 3 difficulty levels
- Answers included
