ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Perimeter Videos 3 videos

ACT Math 2.1 Plane Geometry
484 Views

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

What is the Perimeter of Triangle GHF?
328 Views

ACT Math: Plane Geometry Drill 2, Problem 2. What is the perimeter of triangle GHF?

ACT Math 2.3 Plane Geometry
244 Views

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

See All

ACT Math 2.1 Plane Geometry 484 Views


Share It!


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.

Related 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...

ACT Math 3.1 Plane Geometry
2559 Views

ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?

Inequalities in Number Lines
3229 Views

ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?

ACT Math 3.1 Intermediate Algebra
1955 Views

ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.