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Geometry & Trigonometry
Unit 7 - Area and Surface Area
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Geometry & Trigonometry
9th
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17 Terms
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1
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Area of a rectangle
A\=bh
2
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Area of a parallelogram
A\=bh
3
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Area of a triangle
A\=1/2bh
4
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Area of a trapezoid
A\=1/2(b1+b2)h
5
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Area of a kite
A\=½d₁d₂
6
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Apothem
A perpendicular segment from the center of a regular polygon to a side.
7
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Area of a regular polygon
A\=1/2ap or A\=1/2asn
8
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Area of a circle
A\=πr²
9
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Area of a sector
(arc measure/360)*pi*r^2
10
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Area of a Segment of a Circle
(arc measure/360)*pi*r^2
11
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annulus
the region between two concentric circles
12
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Area of Annulus
πR^2
13
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Surface area of prism
2B+Ph
14
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Surface Area of a Cylinder
2πr² + 2πrh
15
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Surface Area of a Pyramid
B+1/2Ps
16
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Surface Area of a Cone
πrl+πr²
17
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Surface area of a sphere
4πr²