This is really easy i just dont get it

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in

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