It's a joint of tubes.

I could also so the acute angle could be this angle right over here.

I believe acute, in either latin or greek or maybe both means something like pin or sharp, so that's one way to think about it an acute angle seems much sharper.

But this is just general terminology for different types of angles

I wanted to introduce you to are acute angles, right angles, and obtuse angles.

They're both acute angles.

I could also draw an acute angle maybe an angle that is formed from an intersection of two lines, so this angle would be acute, and so will this angle.

And I'll talk about more types of angles in the next video, but if an angle is less than 90 degrees so for example both of these angles that we started our discussion with are less than 90 degrees we call them acute angles.

Well the way I drawn them right over here, these two over here are acute are acute and then these over here are going to be obtuse so this one and this one these are both obtuse angles and I actually drew them up here as well.

I think when we go through these, it will be pretty self explanatory.

I draw two rays coming from a common point.

I can give you another definition for acute angle so an acute angle has a measure or it's smaller than a right angle so you learn about radients and degrees which are different ways to measure angles so you'll see that a right angle can be measured as 90 degrees this over here is less than 90 degrees so this is less than 90 degrees. and one way to conceptualize this is that this angle, it's opening is smaller it's more narrow, it's lines are, you would have to rotate one line

The roof declines at a sharp angle.

So lets keep rotating it, so our other side points to 70 degrees, so it is an acute angle.

So anything, this is acute, that is an acute angle, and that is an acute angle right over here. They are less than 90 degrees.

We call this an obtuse angle. The way I remember it is acute it's kind of a cute angle.

If I were to draw this with lines, which of the angles are obtuse and which are acute?

The giant plane screamed down in an almost vertical dive.

Sharp turns

Tricky question.

Very perceptive.

Spikes... sharp...

Exactly.

It has keen eyesight, good ear and acute sense of smell.

Stateofthebadassart.

And sharp, cruel fangs?

It's still sharp.

Razor sharp.

Tightness

You've made some excellent points, but I still believe the boy is guilty.

It's a beast He's got fangs, razorsharp ones

Shiny, sharp.

We need to shore this.

That's right, old man!

Huh, point's a lot finer than I prefer.

The knife is not sharp.

He has sharp hearing.

The knife is dull.

Hollywood heart attack. Ughhhh.

I don't know, just trying to make connections

That is an excellent question, boss.

I have sharp hearing

Very perceptive, padawan.

I have a good sense of smell.

But that's not happening here.