ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
ACT Mathematics Videos 164 videos
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
Elementary Algebra Drill 2: Problem 2. Can you find the product?
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?
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
Full Transcript
- 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
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
Curious to find out what angle these guys are playing? Check out this video. You’ll have angles coming out of the wazoo.
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...