Barbara is tilling here craft room with square tiles , she wants 6/10 of the square to be red if she uses 18 red tiles how many square tiles will be used to cover the floor?

30square tiles will be used to cover the floor

Step-by-step explanation:

Given:

Number of tiles to be red =  6/10

Total number of tiles used =18

To Find:

how many square tiles will be used to cover the floor = ?

Solution:

Let the number of square tile used to cover the floor be x

Then

x = 30

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: