Simple Angles Review
Acute and Obtuse Angles
Use the animation below to explore and review the differences between acute and obtuse angles. Use the checkboxes to make the examples visible or invisible. Use the sliders to adjust and change the angles.
Reflex Angles
Use the animation below to explore reflex angles.
Right and Straight angles
Straight angles are the angles formed by three points on a straight line. The angle is equal to 180. Right angles have a value of 90 and they resemble a corner.
Revolution Angles
A revolution is a 360 angle - one complete revolution or full circle.
Summary of Angles
