*Fourth grade math* help

Answer:
Step-by-step explanation:
2 If a quadrilateral (four sides) has the same angle its a rectangle
3 If a quadrilateral (four sides) has the same length its a square
careful all squares are rectangles but not all rectangles are squares
1. It can be a square or rectangle because every square is a rectangle but not every rectangle is a square.
2. It can be a polygon or an equilateral.