Understanding angles is really important when learning about 2D shapes in 7th-grade math.

1. Types of Angles:

   • Acute: These angles are smaller than 90 degrees. You can find them in shapes like triangles.
   • Right: This angle is exactly 90 degrees. You see these angles at the corners of squares.
   • Obtuse: These angles are bigger than 90 degrees but smaller than 180 degrees. Some quadrilaterals have obtuse angles.

2. Relationships in Shapes:

   • In any triangle, if you add up all the angles, they will always equal 180 degrees.
   • Seeing how acute and obtuse angles work together can be helpful.
   • For quadrilaterals like parallelograms, the opposite angles are related in a special way.

Using drawings or diagrams can help us understand how angles fit together in different shapes. This makes our skills in spatial reasoning even better!