Sectors and Segments of circles Flashcards by Lucas Kantaris-Diaz

Q

Area of sector =

A

x/360 X pi r^2

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Q

Arc length =

A

x/360 X 2 pi r

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Q

how to work out area of segment?

A

Work out area of sector.
Work out area of triangle using: 1/2 ab sinC.
Area of segment = Area of sector - Area of triangle.

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