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1+4+9 = 14 squares.
In a 3x3 grid, you can form rectangles by choosing two horizontal and two vertical lines. A 3x3 grid has 4 horizontal lines and 4 vertical lines. The number of ways to choose 2 lines from 4 is given by the combination formula ( C(4, 2) ), which equals 6. Therefore, the total number of rectangles is ( 6 \times 6 = 36 ).
Ignoring the orientation of the angles, there are seven. 0, 18.435, 26.565, 36.870, 45, 63.435 and 90 degrees.
Make each square 1 x 1
It depends on the 3D figure say u have a 3x3 cube 3x3=92 ,92x 6 (that's how many sides are on a cube) =542 There is your suface area of a 3x3 cube