please people i need your help.

*Equal squares as large as possible are drawn on a rectangular board measuring 50 cm by 70 cm. Find the size of the square.

assuming you mean to cover the entire board, then since

GCD(50,70)=10
The largest square which will work has side 10

And what is the minimum number of squares can be drawn on a rectangular board.

Do you mean 10 cm or there is no unit?

10 cm.

To find the size of the squares that can be drawn on the rectangular board, we need to determine the largest possible square that can fit evenly within the dimensions of the rectangle.

To do this, we can find the greatest common divisor (GCD) of the dimensions of the rectangle, which in this case is 10 cm.

The GCD represents the size of the largest square that can evenly divide both the length and width of the rectangle.

Therefore, the size of the square that can be drawn on the rectangular board is 10 cm.