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Area of an annulus or pipe

Area of an annulus

How to find the area of an annulus The area = π x (Outer Radius 2 - Inner radius 2) Example: π = 3.14 Outer Radius = 10 cm Inner radius = 8 cm Area =...

Area of a circle

How to find the area of a circle The area = π x Radius 2 Example: π = 3.14 Radius = 10 cm Area =  3.14 x 102  ANSWER : 314...

Area of a square

How to find the area of a square The area = Height x Width Example: Height = 10 cm Width = 10 cm Area = 10 cm x 10 cm ANSWER...

Area of a rectangle

How to find the area of a rectangle The area = Height x Width Example: Height = 10 cm Width = 20 cmArea = 10 cm x 20...