So you could imagine an angle where the two rays in that angle form a line.

Suppose we draw a line at a 45 degree angle,

label it DE, and lets also have line segment, FG and lets say the point where the two line segments interact is H, how could we specify this angle right over here can we call it as angle H, if we say it as angle H, it could be this angle, that angle or this angle over here it could be this angle over here.

Well, if this angle here is alpha, then this much be a 90 degree angle, because a radius intersecting with a tangent line always forms a right angle.

So angle angle side orange sorry, orange angle white angle side

Notice, for example, that this Left Angle starts on line 2, character 11.

So, we know that angle ABE must be congruent to angle CDE by alternate interior angles of a transversal intersecting parallel line

Select a point that the first half line of the angle should go through...

Select a point that the second half line of the angle should go through...

And so if this angle right over here is 4x, it has a corresponding angle where the transversal intersects the other parallel line.

So this angle right over here, its outside ray, I guess you could say, forms a line with this angle right over here.

Well, the first thing that we might realize is that, look, corresponding angles are equivalent. This angle, the angle between this parallel line and the transversal, is going to be the same as the angle between this parallel line and the transversal.

Angle

Angle

angle

angle

Angle

Angle

Angle

Angle

That's one angle here's another angle.

White angle white angle let me be careful here, white angle

let me draw with some lines if I have one line like this and I have another line like that a right angle over here actually all of these would have to be right angles it would mean that this line is completely, if this line were the ground, this line is completely upright relative to this line over here. so either these, so that is what a right angle means so now that we defined right angle

You start by teaching angles an acute angle, a right angle, an obtuse angle, a straight angle.

angle ACB is congruent to angle DBC

Angle 1 is congruent to angle 4.

And an acute angle is an angle

This angle plus this angle is going to be equal to this angle.

Or this angle plus this angle plus this angle is equal to 180.

Main angle

Fine angle

Arc angle

Falloff angle

Bond Angle

Angle Bisector

Resize Angle

Angle Mode

Hour angle

Position Angle

Rotation angle

angle variance

Combine angle

Angle Constraints

Shadow Angle

Fixed angle