RELATIONSHIP BETWEEN ANGLES AND LINES « Matematika Berguna
You measure the angle from the normal, which is 0 degrees, to the ray of light.
Why is the angle of incidence important? If in doubt, you can use complete circles.
The incident ray will have an angle of reflection of 30 degrees made with a surface normal to the mirror surface.
An exercise to supplement the topic you are studying at school at the moment perhaps.
The angle between two lines generally gives the acute angle between the two lines.
One way to address the problem is through the use of interactive activities and this web site provides many of those.
Description of Levels Close - Alternate angles - Corresponding angles - Mixed questions The mixed questions provide a recap of levels one and two and offer an opportunity for a little more problem solving rather than simply applying a rule.
Mazes are also used to test learning behavior particularly in mice.