Examples with solutions for Surface Area of a Cuboid: Increasing a specific element by addition of.....or multiplication by.......

Exercise #1

If we double the lengths of a rectangular prism, then by how much will its surface area increase?

Video Solution

Answer

It will increase by

(width+height)length2 (width + height)\cdot length \cdot2 .

Exercise #2

How will the surface area of a certain rectangular prism change if we triple the width?

Video Solution

Answer

It will increase by (ancho+altura)largo4 (ancho+altura)\cdot largo\cdot4

Exercise #3

How will the surface area of a rectangular prism change if we triple its height?

Video Solution

Answer

It will increase by (width+length)6 (width+length)*6 .