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Mathematics: Surface area of cubes, cuboids and triangular prisms

SURFACE AREA OF CUBES, CUBOIDS AND TRIANGULAR PRISMS

In this module, you can study how to find the surface area of a cube, a cuboid (or rectangular prism) and a triangular prism.

 

The above video explains how to find the surface area of a rectangular prism.

 

The video above is a visual explanation about how people figured out the formulas for the surface area of rectangular and triangular prisms and cylinders.

 

Did you know?

Formula for surface area =  (2 x area of base) + (perimeter of base x height)

 

This formula works for all prisms and cylinders.

Even though a prism is a 3D object, its surface area is 2D.


Study and practice

HOW TO USE A BASIC CALCULATOR

The video explains how to use basic calculator functions and provides examples.

 

0.00 min      addition (+), subtraction (-), multiply (x), divide (÷)

1.19 min      decimal point
2.43 min      C, CE and backspace
4.19 min      square, square root & fractions
6.17 min      percentage (%)

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