For the parallelogram, the two non-congruent spanning triangles is shown in the image attached while one-third the area of the parallelogram is 16.
<h3>What is a parallelogram?</h3>A parallelogram is known to be a kind of quadrilateral angle that is said to be made up of its opposite sides been parallel and equal to one another.
Note that:
If you count the triangles inside the shaded portion is = 8
The triangles per parallelogram the shaded portion is = is 4 per sides
Therefore, to get the total numbers of triangles:
4 x 8 = 48
Since the parallelogram that has one-third the area of the parallelogram is 48.
Then 48 x 1/3 = 16.
Therefore, For the parallelogram, the two non-congruent spanning triangles is shown in the image attached while one-third the area of the parallelogram is 16.
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