PARALELLOGRAM
That depends. How tough do you think it would be to draw a horizontal line or a slanting line on the wall ?
To draw a triangle with one square corner (a right triangle), start by drawing a horizontal line for the base. From one end of this line, draw a vertical line upward, which will form the right angle. Finally, connect the top of the vertical line to the other end of the base line with a diagonal line, completing the triangle. Ensure the angle between the base and the vertical line measures 90 degrees for it to have a square corner.
draw a line from the centre top to the centre bottom. if both sides are even it is a line of symmetry. (answered by a 11 year old)
From the starting point, draw a horizontal line 17.3 inches long. From the end of that line, draw a vertical line 10 inches long. The line from the starting point to the end of the vertical line makes an angle of 30.03° with the horizontal line.