Shapes Flashcards
To know the formula for all most shapes
How do you find the Area of a circle
A=πr2
How do you find the Diameter of a circle
r x 2
How do you find the Radius of a circle
D ÷ 2
How do you work out the Area of a Triangle
Base x Height ÷ 2
How do you find the Area of a Square
Side x Side
How do you find the Area of a Rectangle
Length x Width
How do you find the Area of a Trapezium
1/2 (a+b) h
(a+b) are the sides that are oppositely parallel to each other. H is the height so you times that by the height . So whatever a+b is then you half that and times it by the height
How do you find the Area of a Parallelogram
B x H
How do you find the perimeter of Any shape
Add all the sides
How do you find the Area of a Kite
L x H ÷ 2
How do you find the Area of a Rhombus
L x H ÷ 2
How do you find the Volume of a Prism
The cross sectional area x L
How do you find the Surface Area of a Cylinder
Area Top Circle + Area Bottom Circle + Area of Rectangle
