how many tiles will he need?

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Raj builds a side table in the shape of a cube each edge of the cube measures 20 inches raj want to cover the top and four sides of the table with ceramic tiles each tile has an edge length of 5 inches. How many tiles will he need.

Jun 7th, 2015

Thank you for the opportunity to help you with your question!

Edge length of table,a = 20 in

Area of side of table = a^2 = 20^2 = 400 in^2


Edge length of tile,a = 5 in

Area of tile = a^2 = 5^2 = 25 in^2


Number of tiles needed on one side 

= Area of side of table / Area of tile

= 400/25

=  16


Number of tiles needed for top and 4 sides of the table

= (1 + 4)*16

= 5*16

= 80 tiles

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 7th, 2015

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Jun 7th, 2015
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