ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos

ACT Math 2.3 Plane Geometry 244 Views


Share It!


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.

Up Next

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?

Related Videos

Inequalities in Number Lines
3230 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.

Polygons
5796 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
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...