Question

A square tile has a length of t centimetres. The expression for the total area of an array of 5 rows of 10 tiles is 50 t^2 . For a tile where t = 20 cm, use the expression to work out the area of 5 rows of 10 tiles.

Answer 1

The area is 20000
`cm^(2)`

Explanation:

The expression for the total area of an array of 5 rows of 10 tiles is,

(given),

`Area = 50t^(2)`

now, for t = 20 cm, we get,

`Area = 50(20)^(2) \\Area = 20000\ cm^(2)`