Cylinders (Edexcel GCSE Maths): Flashcards

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Cylinders
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Definition of surface area

Total area of all faces of a 3D shape

Number of faces on a cylinder

3 (two circular, one curved)

Curved face of cylinder when flattened

Rectangle

Length of flattened curved face

Circumference of circle (2pir2pi r)

Surface area formula for cylinder

2pir2+2pirh2pi r^2 + 2pi rh

Definition of volume

How much space is inside a 3D shape

Volume formula for cylinder

pir2hpi r^2 h

What rr represents in cylinder formulas

Radius of the circular base

What hh represents in cylinder formulas

Height of the cylinder

Formula to find radius from diameter

Radius = diameter ÷ 2

How to write answers in terms of π

Leave π as symbol, don't use π button on calculator

Capacity conversion: 1cm³ equals

1ml

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