Math Shapes Formula Sheet
2D Shapes (Area & Perimeter)
Square:
Area = s²
Perimeter = 4s
Rectangle:
Area = l × w
Perimeter = 2(l + w)
Triangle:
Area = ½ × b × h
Perimeter = a + b + c
Parallelogram:
Area = b × h
Perimeter = 2(a + b)
Trapezoid:
Area = ½ (a + b) × h
Perimeter = a + b + c + d
Circle:
Area = πr²
Circumference = 2πr
3D Shapes (Volume & Surface Area)
Cube:
Volume = s³
Surface Area = 6s²
Rectangular Prism:
Volume = l × w × h
Surface Area = 2(lw + lh + wh)
Cylinder:
Volume = πr²h
Surface Area = 2πr² + 2πrh
Sphere:
Volume = (4/3)πr³
Surface Area = 4πr²
Cone:
Volume = (1/3)πr²h
Surface Area = πr² + πrl
Pyramid:
Volume = (1/3) × base area × height
Symbols
s = side, l = length, w = width, h = height, r = radius, b = base, π ≈ 3.14