Several 15 * 15 tiles are equal to 1 square meter How many square meters is a 15 * 15 tile? How many pieces of 15 * 15 tiles can you put in a square meter?

Several 15 * 15 tiles are equal to 1 square meter How many square meters is a 15 * 15 tile? How many pieces of 15 * 15 tiles can you put in a square meter?

Equal to 0.0225 mm, can put 44.5 pieces

Use the floor tile with side length of 4 decimeters to lay a floor with an area of 8 square meters. How many such floor tiles do you need at least?

Why do you need to cut the tiles? If it's not an integral multiple, then you need to use it
Now in the simplest way to think, imagine: the ground width is 4 decimeters, then its length is 200 decimeters, then you need 50 tiles

A square tile area of 64 square decimeters, side length is how many decimeters?

Let the side length be a decimeter, because the four sides of a square are equal
Square area formula s = a * a
64=a*a
a=8
So the side length of a square is 8 decimeters