Write and drawing different shapes of angles and which one is smaller

Here are different shapes of angles:

1. Acute Angle: This angle is smaller than 90 degrees (a right angle). It looks like the corner of a sharp slice of pizza. Drawing: Imagine two lines meeting at a point, forming an angle less than a right angle.

2. Right Angle: This angle is exactly 90 degrees. It forms a perfect corner, like the corner of a square or a book. Drawing: Two lines meeting at a point, forming an 'L' shape.

3. Obtuse Angle: This angle is larger than 90 degrees but smaller than 180 degrees. It looks wider than a right angle, like an open pair of scissors. Drawing: Imagine two lines meeting at a point, forming an angle wider than a right angle but not a straight line.

4. Straight Angle: This angle is exactly 180 degrees. It forms a straight line. Drawing: A single straight line.

The acute angle is the smallest type of angle among these.