Area of Sector
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Flip to reveal answersSector area formula in radians?
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All 4 Flashcards — Area of Sector
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Question
Sector area formula in radians?
Answer
A = (1/2) r^2 theta
💡 Hint
Theta must be in radians.
Question
Sector area formula in degrees?
Answer
A = (theta/360) * pi r^2
💡 Hint
Same fraction idea as arc length.
Question
Perimeter of sector formula?
Answer
P = 2r + arc length
💡 Hint
Add both radii and curved edge.
Question
IB trap for sector area tasks?
Answer
Using degrees formula with radians (or vice versa).
💡 Hint
Check angle mode before substituting.
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Full study notes for Area of Sector
Topic 3.4 hub
Circle arc length and area of sector (degrees)
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