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Circles and Solids
Edexcel GCSE Mathematics (1MA1) — Geometry and Measures
What You Need to Know
Apply the formula for circumference of a circle:
C
=
2
π
r
=
π
d
C = 2\pi r = \pi d
C
=
2
π
r
=
π
d
.
Apply the formula for area of a circle:
A
=
π
r
2
A = \pi r^2
A
=
π
r
2
.
Calculate perimeters of 2D shapes, including circles.
Calculate areas of circles and composite shapes.
Calculate surface area and volume of spheres, pyramids, cones, and composite solids.
Revision Notes
1
Circumference and Area of Circles and Composite 2D Shapes
12 key terms
2
Surface Area and Volume of 3D Solids
12 key terms
Practise with Past Papers
Key Terms & Definitions
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Area and Volume Formulae
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Arcs and Sectors
