# data[].attributes.body
As a group, discuss what your answer would be to the problem below.

# data[].attributes.body
Can you identify the scale factor of these similar triangles?

# data[].attributes.body
Answer the following questions in your comp book: How can you use your knowledge of similar triangles, scale factor and Pythagorean Theorem to find the height of the flag pole?.  Use as much vocabulary as you can in your group discussion summary.

# data[].attributes.body
Attach an individual reflection of this activity answering the following questions:

How does this activity use dilation?

How does this activity use similar triangles?

How does this activity use angle relationships?

Could you use Pythagorean theorem to help answer the height of the flagpole? If yes, How?

Did you enjoy this activity? Why or Why not?

Use appropriate vocabulary and terminology in your reflection.

# data[].attributes.body
Similar Triangles

# data[].attributes.attachment_link.title
Practicing Algebra 1 math: 'Similar triangles and indirect measurement'

# data[].attributes.attachment_link.description
Fun math practice! Improve your skills with free problems in 'Similar triangles and indirect measurement' and thousands of other practice lessons.

# data[].attributes.body
Angle Relationships

# data[].attributes.attachment_link.readable_text
"Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down.

Example: a° and b° are vertical angles.

The interesting thing here is that vertical angles are equal:

a° = b°

(in fact they are congruent angles)

Have a play with them yourself. Notice how the 4 angles are actually two pairs of "vertical angles":

images/geom-vert-angles.js

Example: Find angles a°, b° and c° below:

Because b° is vertically opposite 40°, it must also be 40°

A full circle is 360°, so that leaves 360° − 2×40° = 280°

Angles a° and c° are also vertical angles, so must be equal, which means they are 140° each.

Answer: a = 140°, b = 40° and c = 140°.

# data[].attributes.attachment_link.description
"Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down. The interesting thing here is that vertical angles are equal: a° = b° (in fact they are congruent angles) Have a play with them yourself.

# data[].attributes.body
Dilations

Similar Triangles

Vertical Angels

Pythagorean Theorem

Congruence

# data[].attributes.body
As a group, you are to use a minimum of two methods to find the height of the School's flagpole. Create a HOW-TO Poster explaining your results, include illustrations and diagrams where appropriate

# data[].attributes.body
Watch this video:

# data[].attributes.attachment_link.title
Calculate The Height Of Any Tall Object!

# data[].attributes.attachment_link.description
Video will show you how to calculate the height of any tall object without having to climb it!

# data[].attributes.headline
4.) Other helpful ideas and/or resources: 

# data[].attributes.subject
4.) Other helpful ideas and/or resources: 

# data[].attributes.attachment_link.description
How to Measure the Height of a Tree. At a secret location somewhere in northern California, a tree named Hyperion has been measured at a world record height of 379.3 feet (115.61m)!http://www.npr.org/blogs/krulwich/2011/04/08/135206497/t...

# data[].attributes.body
How does this method implement similar triangles, scale factor and/or Pythagorean Theorem?

# data[].attributes.body
Your group will be given a measuring tape, yarn, a mirror, and an iPad, markers, Poster paper.

Your group will need:

pencils, composition notebooks.

# data[].attributes.body
1. This week's activity is to discover a method of calculating the height of our School's flagpole using similar triangles and without measuring the actual pole.