Formulas in Geometry

• Perimeter of a square

  P=4s
• Perimeter of a rectangle:

  P= 2L+ 2w
• Circumference:

  C=2πr
• Area of a square:

  A= s²

  A= d²/2
• What is the “d” in the area of the square?

  diagonal
• What is the PERIMETER of a SQUARE?

  P= 4s
• What is the PERIMETER of a RECTANGLE?

  P= 2L+2w
• What is the CIRCUMFERENCE?

  C=2πr
• What is the AREA of a SQUARE?

  A= s²
• What is the area of the square? (2)

  A= d²/2
• What is the AREA of a RECTANGLE?

  A=Lw
• What is the AREA of a TRIANGLE?

  A= 1/2bh
• What is the AREA of a CIRCLE?

  A=πr²
• What is the AREA of a PARALLELOGRAM?

  A=bh
• What is the AREA of a TRAPEZOID?

  A= 1/2(b1+b2)h
• What is the TOTAL SURFACE AREA of a CUBE?

  6s²
• What is the TOTAL SURFACE AREA of a CYLINDER?

  2πr²+2πrh
• What is the TOTAL SURFACE AREA of a CONE?

  πr²+πrh
• What is the TOTAL SURFACE AREA of a SPHERE?

  4πr²
• What is the VOLUME of a CUBE?

  V=s³
• What is the VOLUME of a RECTANGULAR PRISM?

  V=LWH
• What is the VOLUME of a TRIANGULAR PRISM?

  V=½BHL
• What is the VOLUME of a CYLINDER?

  V=𝛑r²h
• What is the VOLUME of a SPHERE?

  V=4/3𝛑r²
• What is the VOLUME of a CONE?

  V=𝛑r²h/3
• What is the formula for QUADRATIC EQUATION?

  x=-b+-√b²-4ac/2a