7 horizontal lines and 10 vertical lines how many rectangles?
NONSENSE
there are four two vertical two horizontal
two: horizontal and vertical
To determine the number of rectangles in a 4 by 4 square, we can use the formula for the number of rectangles in an n by m grid, which is (n*(n+1)m(m+1))/4. In this case, n = 4 and m = 4, so the number of rectangles would be (4*(4+1)4(4+1))/4 = 40 rectangles. This includes all possible rectangles of different sizes that can be formed within the 4 by 4 square.
In a 4 by 4 grid, there are 16 squares (1x1 squares), 9 rectangles that are 2x1, 6 rectangles that are 3x1, 4 rectangles that are 2x2, and 1 rectangle that is 4x4. Therefore, in total, there are 16 squares and 20 rectangles in a 4 by 4 grid.
The number 8 has only 2 lines of symmetry; Vertical and Horizontal.
Two lines of symmetry; one vertical and one horizontal
16 * 28 = 448
The slope of a vertical line is undefined. The slope of a horizontal line is 0. Hope this helps.
Yes, but only if they are exactly vertical and exactly horizontal (90 degrees angular difference). For real-world examples, many vertical lines can be perpendicular to a single "horizontal" curved line at the points of intersection.
two Edit: Actually it has four - One vertical, one horizontal and two rotational lines at the diagonals !