Question

A room has a rectangular floor that is 15 feet by 21 feet. What is the area of the floor in square yards ? ​

Answer 1

Answer 2

Hey There!

Let's solve...

Here it is a rectangular floor with length =21 cm and width =15cm

So

`area = l * w \\ = 21 * 15 \\ = 315 {ft}^(2) \\ \\`

So now We need to convert it to yards square

`315ft^(2) * \frac{ {1yd}^(2) }{ {9ft}^(2) } \\ \\ = \cancel{315ft^(2)} \: ^(35) * \frac{ {1yd}^(2) }{ \cancel{9 {ft}^(2) }} \\ \\ = 35 {yd}^(2)`

So how this 9 ft^2 came??

Let's know

`ft \to \: yards \\ \\ 3ft = 1yd \\ \\ {3ft}^(2) = {1yd}^(2) \\ \\ \boxed{ {9ft}^(2) = {1yd}^(2)}`

I hope it is helpful to you...

Cheers!_______