The area of the polygon with the given vertices is of 7.5 square units.
What is the area of a right triangle?
The area of a right triangle is given by half the multiplication of the lengths of it's sides.
The polygon in this problem is a right triangle with sides 3 and 5, hence the area is given by:
A = 0.5 x 3 x 5 = 7.5 square units.
More can be learned about the area of a right triangle at https://brainly.com/question/17335144
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