Sectors Flashcards
0
Q
AREA OF SECTOR
A
As=½r²θ
1
Q
ARC LENGTH
A
S=rθ
2
Q
AREA OF A TRIANGLE
A
A=½r²sinθ
3
Q
AREA OF A SEGMENT
A
Aseg=½r²(θ-sinθ)
4
Q
PERIMETER OF A SECTOR
A
Ps=2r+rθ
5
Q
PERIMETER OF A SEGMENT
A
Pseg=rθ+√2r²-2r²cosθ