The answer to the question is a
Can you elaborate more on the question?
What do squares, rectangles, and right triangles have in common? They all contain at least one right angle!
What shape has at least one right angle?
rectangle
A rectangle is a four-sided shape where every angle is a right angle (90°). Also, the opposite sides are parallel and of equal length.
He doesn't have a positive number. Add $45 and $112 together and it exceeds $79