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Modeling and Applications Videos 10 videos

TSI Math: Using Proportions to Find the Height of a Shadow
24 Views

Arya went for a walk in the woods and came upon a tree in an open field. The tree cast a 72-foot shadow. If Arya is five feet tall and cast a six-f...

TSI Math: Comparing Volumes for Cylinders and Cubes
18 Views

A cylindrical can of paint fits snugly on all sides inside a box. What is the ratio of the cylinder's volume to the box's volume?

TSI Math: How Many Square Yards are in a Square Mile?
27 Views

There are 3 feet in a yard and 5280 feet in a mile. A square mile is equivalent to how many square yards?

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CAHSEE Math 1.4 Measurement and Geometry 228 Views


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Description:

Measurement and Geometry: Drill Set 1, Problem 4. What is the actual height of the tree in feet?

Language:
English Language

Transcript

00:03

Here's your shmoopy question du jour...

00:06

The drawing of a tree has a scale of 1 cm = 4 ft as shown below. 

00:12

What is the actual height of the tree in feet?

00:17

Here are the potential answers...

00:22

This question is a standard conversion question -- can we translate centimeters into American?

00:29

Er... uh... feet.

00:32

Since the answers are all in feet, we don't care about inches...

00:35

...but that could be a curveball these test making people throw your way.

00:39

So... we're told that 1 centimeter equals 4 feet -- which sets up a ratio.

00:46

1 is to 4 as 6.75 is to... what?

00:52

Well, just multiply 6.75 by 4 and we get the answer: 27.

01:02

So it's D.

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