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Polygons Videos 24 videos

Polygons
5795 Views

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
2103 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 2.1 Plane Geometry 484 Views


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Description:

ACT Math: Plane Geometry Drill 2, Problem 1. What is the perimeter of the shape shown?

Language:
English Language

Transcript

00:02

Here is your shmoop de jour...

00:05

What is the perimeter of the shape below?

00:08

And here are the potential answers...

00:13

Okay the key thing we have to notice here is this distance 4

00:16

which is exactly half of this distance 8

00:20

and this distance 3 which is exactly half of this distance 6

00:24

Suddenly have a right triangle with sides 3 he ran for their

00:28

and thanks to Pythagoras we know that a squared plus B squared equals C squared

00:34

that 3 squared 9 plus 4 squared 16

00:38

equals by square 25 take the square root of 25 and thats how we got 5

00:42

thing. Now just add the perimeter lines and we have 3 plus

00:46

8 plus 6 plus 4 plus 5 and our perimeter here is 26.

00:51

Answer D.

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