ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos

Math 4: Even More Angles 63 Views


Share It!


Description:

Not to freak you out or anything, but there are angles living among us. Good luck falling asleep tonight.

Language:
English Language

Transcript

00:12

Think you know everything about angles? [Boy wearing an angle expert shirt]

00:15

Sure, you can spot an obtuse angle right away – they’re the big guys. [Obtuse angle appears]

00:19

And acute angles?

00:20

Pffffft.

00:21

You'd recognize those lil' guys anywhere.

00:23

Hey, you even know how to take their exact measurements! [Protractor flies into the boys hand]

00:27

You're a regular angle expert, right?

00:30

But…uh-oh.

00:31

What's that?

00:32

There, lurking in that dark corner… [Torch light searching around a dark room]

00:34

….there are other angles living among us…

00:36

…and they really could use a light bulb, or a candle or something…seriously, why [Other angles hiding in the dark room]

00:41

are they sitting in the dark?

00:43

Anyway.

00:44

Take this angle.

00:45

Sure, it looks like a straight line, but it’s actually an angle in disguise. [Straight line with eyes]

00:48

Yep – a straight line has an angle measurement, too.

00:51

Check it out.

00:52

It measures exactly 180-degrees. [Protractor on the line]

00:54

It’s twice the size of a right angle…

00:57

...and we call this one a “straight angle.”

00:59

But wait, there’s more!

01:01

Man, this is like Christmas came early…except instead of leaving decent stuff, Santa left….math. [Coop pointing at a blackboard]

01:05

…What, was he out of coal….? [Boy looks excited by presents under the tree then realises they're all math books]

01:08

So this circle’s got an angle measurement, too.

01:11

It’s called a “full angle”. [Cirlce with eyes]

01:12

It’s twice the size of a straight angle and

01:14

measures 360-degrees. [Dino pointing at a blackboard]

01:17

And what about the angles that are more than 180-degrees but less than 360-degrees?

01:21

Math’s not gonna let them fall through the cracks. [Angle falls down then comes back up]

01:24

We call those “reflex angles.”

01:26

And they're the real winners here, because they get the coolest name of the bunch.

01:30

So now you know.

01:31

Angles are everywhere, hiding in plain sight… [The light shines on the angles in the dark room]

01:34

…Seriously, can someone get these things a lamp?

Up Next

ELA 4: How Words Can Help
1205 Views

Sticks and stones, right? Well...only sometimes. It's a good idea to make sure your words aren't going to hurt others. Let's look at some ways to d...

Related Videos

ELA 4: Debating Like a Champ
744 Views

Learn to debate like a champ. It's way better than debating like a chimp. That just takes mudslinging to a whole new level.

ELA 4: Types of Biographies
277 Views

Today we'll learn about biographies and autobiographies. And no, the second one has nothing to do with the lives of cars. 

ELA 4: Complete Sentences
775 Views

In this lesson we'll subject you to some verbs and predicates. Each one is a necessary part of a complete breakfas—er...sentence.

ELA 4: Word Choice
222 Views

Choosing words carefully is important. You may end up vexing the assemblage of citizens you're conversing with...or you might even just plain bore...