Conversion & Mensuration Formulas

Area of a Rectangle

• $Length\ \times\ Breadth$
  

• $Length\ \times Length$

• $\frac{1}{2}\times Base\times Height$

• $Base\ \times Height$

Area of a Triangle

• $\frac{1}{3}\times Base\ \times Height$

• $\frac{1}{2}\times Base\ Area\times Height$

• $\frac{1}{2}\times Base\ \times Height$

• $\frac{1}{4}\times Base\ Area\times Height$

Circumference of a Circle

• $\pi r$

• $2\pi r^2$

• $\pi r^2$

• $2\pi r$

Area of a Circle

• $\pi r$

• $2\pi r$

• $\pi r^2$

• $2\pi r^2$

Volume of Cylinder

• $\pi rh$

• $\pi r^2h$

• $2\pi rh$

• $\pi r^2$

Curved Surface Area of a Cylinder

• $2\pi r^2h$

• $2\pi r$

• $\pi rh$

• $2\pi rh$

Total Surface Area of a Solid Cylinder

• $2\pi rh+2\pi r^2$

• $2\pi r^2h+2\pi r^2$

• $2\pi rh+\pi r^2$

• $\pi rh+\pi r^2$

Volume of a Cone

• $\frac{1}{3}\pi rh$

• $\frac{1}{2}\pi rh$

• $\frac{1}{3}\pi r^2h$

• $\frac{1}{2}\pi r^2h$

Curved Surface Area of a Cone

• $\pi rh$

• $\pi rl$

• $2\pi rl$

• $2\pi rh$

Total Surface Area of a Cone

• $\pi rl+2\pi r$

• $\pi rl+\pi r$

• $\pi rl+2\pi r^2$

• $\pi rl+\pi r^2$