Friday

November 28, 2014

November 28, 2014

Posted by **Swati** on Sunday, February 19, 2012 at 12:20am.

- math -
**Reiny**, Sunday, February 19, 2012 at 8:43amlet each side be x units

surface area = 6x^2

new edge = 1.1x

new surface area = 6(1.1x)^2 = 7.26x^2

increase = 1.26x^2

percentage increase = 1.26x^2/(6x^2) = 1.26/6 = .21

= 21%

we could have just looked at one of the 6 faces for the same result.

**Answer this Question**

**Related Questions**

MATH! - If the edge of a cube is increased by 50%, then the volume is increased ...

geometry - if the length of each edge in a cube is increased by the same percent...

math - If each edge of a cube is increased by 2 inches, the A. volume is ...

algebra - First: solve for k. Then, go back to the original equation c=k(d-3) ...

calculus - the surface area of a cube is increased from 24 square centimeters to...

Calculus - The volume of a cube is increased from 729 cubic centimetres to 849....

math - A cube with an edge length of 4 in is painted on all its sides. Then the ...

Calculus - S=6x^2 is the surface area of a cube. Find the exact change in ...

math (algebra honors) - the edge of one cube is 2 cm shorter than the edge of a ...

math (algebra honors) - The edge of one cube is 2 cm shorter than the edge of a ...