Geometric Reasoning and Construction · Geometry and Measure
Area of Trapezia and Circles
Deriving and applying formulas for the area of complex 2D shapes and circles.
Key Questions
- 1How can a trapezium be decomposed into simpler shapes to derive its area formula?
- 2Why is the ratio of a circle's circumference to its diameter a constant value?
- 3How does the area of a circle change if its radius is doubled?
National Curriculum Attainment Targets
KS3: Mathematics - Geometry and Measures
Year: Year 8
Subject: Mathematics
Unit: Geometric Reasoning and Construction
Period: Geometry and Measure
Suggested Methodologies
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