It depends on what information you do have, but the simplest answer is to measure it.
To find the area of a parallelogram, multiply the length of the base by the height. The height should be perpendicular to the base.
Area = length*perpendicular height
Its length and its perpendicular height Area = length*height
A parallelogram can have any length which is greater than zero.
The area of a parallelogram is equal to base times height. You can find the maximum area of a parallelogram by multiplying the length of a short side by the length of a long side. (This would be the area if the parallelogram were a rectangle.)You cannot know the area of a parallelogram if all you know is the length of the sides; you can only know the maximumpossible area. Imagine you slant the parallelogram a lot. The area will decrease, but the side lengths will stay the same.
To find the height of a parallelogram, you divide the area by the base length. So in this case, the height of the parallelogram would be 115/12 = 9.58 to the nearest hundredth.
area is length times width
Multiply the length of the base by the vertical height.
Area of a parallelogram = length*perpendicular height
Divide the length of one side by the length of an adjacent side.
The base length of a parallelogram is larger than its width or its side.
You cannot. Also, it is a parallelogram, not parallegram!