441
Chat with our AI personalities
To calculate the number of rectangles in a 5 by 4 grid, you can use the formula for the number of rectangles in an n by m grid, which is n*(n+1)m(m+1)/4. Plugging in the values for n=5 and m=4, you get 5*(5+1)4(4+1)/4 = 564*5/4 = 600/4 = 150 rectangles. So, there are a total of 150 rectangles in a 5 by 4 grid.
Oh, that's a happy little question! In a 6x6 grid, you have 36 individual squares. But if you count all the different sizes of squares that can fit within the grid, including the whole grid itself, you have a total of 91 squares to enjoy painting with your imagination.
30
Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. So, there are 5 rectangles with an area of 36 cm^2 is 5.
1 x 42 2 x 21 3 x 14 6 x 7