Geometry Formulas

• Perimeter = 4a
• Area = a²

• Perimeter = 2b + 2h or 2(b + h)
• Area = bh

• Perimeter = 2a + 2b or 2(a + b)
• Area = bh

• Perimeter = a + b + c
• Area = .5bh

• Perimeter = 4a
• Area = ah

• Perimeter = b₁ + b₂ + x + y
• Area = .5h(b₁ + b₂)

• Circumference = (3.14)d or (2)(3.14)(r)
• Area = (3.14)(r²)

• Surface Area = 6a²
• Volume = a³

• Surface Area = 2(lw = lh + wh)
• *Or SA = (perimeter of the Base)h + 2(Area of the Base)

• Volume = lwh
• *Or V = (Area of the base)h

Surface Area = (perimeter of the Base)h + 2(Area of the Base)

Volume = (Area of the Base)h

• Surface Area = (Perimeter of the Base or Circumference)h + 2(Area of the Base)
• *Or SA = 2(3.14)rh + 2(3.14)(r²)
• *Or SA = 2(3.14)r(h + r)

• Volume = (Area of the Base)h
• *Or V = (3.14)(r²)(h)

• Surface Area = 4(3.14)(r²)
• Volume = 4/3(3.14)(r²)