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Polygons Videos 24 videos

Polygons
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Curious to find out what angle these guys are playing? Check out this video. You’ll have angles coming out of the wazoo.

Angles of a Polygon
2104 Views

We know what you came here for—you want to hear the latest interview with the hot starlet, Polly Gon. Well, we've got the scoop for you. She's re...

SAT Math 4.3 Geometry and Measurement
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SAT Math 4.3 Geometry and Measurement

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ACT Math 2.3 Plane Geometry 244 Views


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Description:

ACT Math: Plane Geometry Drill 2, Problem 3. What is the perimeter of the object in the video?

Language:
English Language

Transcript

00:02

And here's your shmoop de jour...

00:04

What is the perimeter of the object below?

00:07

And here are the potential answers...

00:11

It's all about visualization -- can we see 2 rectangles here?

00:15

We are being asked for the perimeter, which is the distance all the way around...

00:15

We are being asked for the perimeter, which is the distance all the way around…

00:19

...so we are just going to add a bunch of numbers together.

00:22

And we can fill some in... this line is the same length as this line so we can label it

00:27

with a "3"... this line is the same distance as that line so we can put a "5" here...

00:32

So all that's left is figuring out this line. We know the height is 6 because of this

00:37

4 and this 2...

00:39

...so we can subtract this 4 from 6... and we know that this line is also 2.

00:44

Now we just add the numbers -- and we have 4 plus 3 plus 2 plus 5 plus 4 plus 5 plus

00:50

2 plus 3... is 28.

00:52

The answer is B.

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Curious to find out what angle these guys are playing? Check out this video. You’ll have angles coming out of the wazoo.

Angles of a Polygon
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We know what you came here for—you want to hear the latest interview with the hot starlet, Polly Gon. Well, we've got the scoop for you. She's re...