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Playlist CAHSEE Math Test Prep: Measurement and Geometry 30 videos
Measurement and Geometry: Drill Set 2, Problem 1. How far is this distance in real life?
Measurement and Geometry Drill 2 Problem 2. If Sarah is required to swim three lengths of this pool, how far, to the nearest foot, will she need to...
CAHSEE Math Measurement and Geometry Drill 2, Problem 3. How far apart in kilometers is the destination away from the starting point?
CAHSEE Math 5.1 Measurement and Geometry 189 Views
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Description:
Measurement and Geometry Drill 5 Problem 1. A parcel of land measuring 64 square kilometers is equivalent to an area of how many square miles?
- Algebra and Functions / Unit Conversion
- Mathematics and Statistics Assessment / Modeling and Applications
- Functions / Functions as Models
- Geometry / Apply geometric concepts in modeling situations
- Properties, Measurement, and Dimension / Apply geometric concepts in modeling situations
- Measurement and Geometry / Conversions
Transcript
- 00:03
Here’s an unshmoopy question you’ll find on an exam somewhere in life...
- 00:08
A parcel of land measuring 64 square kilometers is equivalent to an area of
- 00:13
how many square miles? Hint: 100 kilometers equals 62.5 miles…
- 00:18
And here are the potential answers...
- 00:23
Ok, this question is testing our singing ability.
Full Transcript
- 00:26
C’mon everyone... this land is your land/ this land is my land… no? Ok. Party poopers.
- 00:33
It’s just a vanilla area conversion problem. They give us that 100 kilometers is 62 and
- 00:38
a half miles so if we take that to the unit level, 1 kilometer is about .625 miles.
- 00:44
Since 1 kilometer is about .625 miles, this tells us that miles are bigger than kilometers.
- 00:50
Makes sense. America’s bigger than England.
- 00:53
They give us the 64 kilometers as part of the question.
- 00:57
So we can immediately eliminate C and D, since only 2 of the answers are less than 64.
- 01:02
To convert kilometers and miles to SQUARE kilometers and SQUARE miles, we can just square .625.
- 01:08
Since we want to find the how many square miles are in 64 square kilometers, we can
- 01:13
multiply .625 times 64 to get 25 miles squared.
- 01:19
Looks like the answer is A.
- 01:21
As in… “American Idol is calling…”
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