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Parallelogram
- Square
- Rectangle
Triangle
Trapezoid
Kite and Rhombus
Regular polygon
Circle
Sector
Annulus
Segment
Regions between circles and squares
Surface area of Prisms
Surface area of Cylinders
Surface area of Pyramids
Surface area of a Cone
Surface area of Joined Solids
Pythagorean Theorem
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Annulus Area
An
annulus
is the region lying between two concentric
circles
Annulus Area
Area =
Find the area of the shaded region:
Area =
R=6 and r=2
Area =
=
=
Find the area of the annulus whose radius are 4 and 9
Take
Area=