MATH166 Solid Mensuration Formulas: Planes

Perimeter

Central Angle

Apothem

Interior Angle

Diagonal

Area of Regular Polygon

Altitude of Triangle

Median

Angle Bisector

Area of Triangle

Area of Triangle (SAS)

Area of Triangle (SSS or Heron’s Formula)

Area of Quadrilateral (Given diagonal lengths)

Area of Quadrilateral (in terms of sides a, b, c, and d, and θ)

Area of Quadrilateral (Given two opposite angles)

Diagonals of Parallelogram

Perimeter of Parallelogram

Area of Parallelogram

Area of Parallelogram (Given sides and any interior θ)

Diagonals of Rectangle

Perimeter of Rectangle

Area of Rectangle

Diagonal of Square

Perimeter of Square

Area of Square

Side of Rhombus

Diago

Perimeter of Rhombus

Area of a Rhombus

Area of Rhombus (Given base and angle)

Area of Trapezoid

Circumference of a Circle

Area of Circle