CAHSEE Math 5.1 Measurement and Geometry

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?

AlgebraWord Problems
Algebra and FunctionsUnit Conversion
CAHSEE MathMeasurement and Geometry
FunctionsFunctions as Models
GeometryApply geometric concepts in modeling situations
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LanguageEnglish Language
Mathematics and Statistics AssessmentModeling and Applications
Measurement and GeometryConversions
Properties, Measurement, and DimensionApply geometric concepts in modeling situations

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…”