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Geometry Cheat Sheet - Coggle Diagram
Geometry Cheat Sheet
Polygons
Sum of the interior sum angles: (n-2)*180
Sum of exterior angles is always 360 degrees
Area of a polygon: (s x a x n)/2
3D Shapes
Surface Areas
Cuboids: 2(lb x bh x hl)
Cubes: 6s^2
Prisms with n-gon as base: (n x a x s) + (n x s x h)
Cylinder: 2πr(r+h)
Volumes
Cube: s^3
Cuboid: l x b x h
Prism with n-gon base: (n x a x s x h)/2
Cylinder: πr^2h
Types of 3D shapes
Polyhedrons
Convex polyhedrons
Regular polyhedrons
Concave polyhedrons
Prisms and Pyramids
Quadrilaterals
Types of Quadrilaterals
Kites
Rectangle
Quadrilaterals
Rhombus
Parralellogram
Square
Trapezoid
Area of Qudrilaterals
Parallelogram: h*b
Trapezoid: [(a+b)*h]/2
Kite: (d1*d2)/2
Rhombus: (d1 x d2)/2 or h x b
Rectangle: l*b
Square: s^2