Surface Area and Volume Formulas

Length/Perimeter Formulas

• Circumference: $c = \pi d$ or $c = 2 \pi r$
• Arc Length: $l = \frac{\theta}{360} \times 2 \pi r$

Area Formulas

• Square: $A = s^2$
• Rectangle: $A = l \times b$
• Triangle: $A = \frac{1}{2} b h$
• Parallelogram: $A = b h$
• Rhombus: $A = \frac{1}{2} x y$
• Kite: $A = \frac{1}{2} x y$
• Trapezium: $A = \frac{1}{2} h (a + b)$
• Circle: $A = \pi r^2$
• Sector: $A = \frac{\theta}{360} \times \pi r^2$

Surface Area Formulas

• Cylinder: $SA = 2 \pi r^2 + 2 \pi r h$
• Cone: $SA = \pi r^2 + \pi r l$
• Sphere: $SA = 4 \pi r^2$

Volume Formulas

• Cube: $V = s^3$
• Rectangular Prism: $V = l \times b \times h$
• Prism: $V = A h$
• Pyramid: $V = \frac{1}{3} A h$
• Cylinder: $V = \pi r^2 h$
• Cone: $V = \frac{1}{3} \pi r^2 h$
• Sphere: $V = \frac{4}{3} \pi r^3$

Pythagoras Theorem

• $a^2 + b^2 = c^2$