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YOUR CART

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8/20/2016 21 Comments

Geometry with Roof Trusses

Free Clipart for Geometry Teachers to Place in any Quiz or Worksheet - Roof Trusses for Missing Angle Measures
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I created some very nifty digital roof trusses for another resource the other day. I put so much effort into researching and building different truss styles, that I decided to share the images as clip art in case other people can use these in worksheets, etc.  

They are great for real-world problem solving in so many areas, depending on what "given" parts you label:
- Triangle Sum Theorem
- Congruent & Similar Triangles & Quadrilaterals
- Quadrilateral Sums (& even pentagons)
- Angle Addition Postulate
- Supplementary Angles & Linear Pairs
​- Diagrams within proofs
... and a lot more.  

Just pop them on the page, and add some text boxes or symbols to create endless problem sets.  These would be great on quizzes.

You can shrink/expand them to any size.

Here are the individual clipart files (as PNGs with invisible backgrounds).  These image files are for personal or classroom use only, not for commercial use (You may not sell any resource with these images in it).  Click each picture to download and save each image file:
Free Practice Worksheet - Finding Missing Angle Measures: Geometry with Roof Trusses
Fink Truss
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Fan Truss
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Howe Truss
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Double W Truss
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Here is a worksheet I created as a missing-angle-measure puzzle.  
​Click the image to download the PDF file and answer key:
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Pin it
If you use this worksheet, after the great review of angle measures, properties of triangles, and supplementary angles, you can follow it up by asking students to classify the different triangles, identify pairs of similar and congruent triangles, and even discuss special right triangles.

I hope you and your students can use and enjoy these! 

If you are interested in receiving more free teaching resources, math articles, and updates, join my email list:

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21 Comments
Cindy Taylor
9/22/2016 11:10:28 am

I really appreciate your generosity in sharing! Love the real world aspect of the roof angles. Thank you!!

Reply
Math Giraffe link
9/22/2016 04:53:24 pm

Thanks so much, Cindy! :)
Have an awesome year!
-Brigid

Reply
Janice Barton
9/22/2016 11:52:12 am

Thanks for sharing!!!

Reply
Math Giraffe link
9/22/2016 04:54:02 pm

No problem! Thanks so much, Janice! :)
I am so glad you can use these. Enjoy!
- Brigid

Reply
Lynn
9/22/2016 06:57:31 pm

I can't remember when I first came across your work but I am so glad that I did. I get excited when I see your entries in my email list and look forward to viewing your latest work. It is so obvious how passionate and committed you are to producing quality resources that engage your students and how much time and energy you put into some your amazing resources. Like so many others I really appreciate your generosity and willingness to share what you produce.

Reply
Math Giraffe link
9/23/2016 08:10:53 am

Hi Lynne!
Thank you so much! I am really glad that you are enjoying all the resources :) I really appreciate your kind comments! Have a wonderful weekend!!
-Brigid

Reply
Sandy Pence
9/25/2016 06:56:18 am

Thank you for sharing your wonderful ideas! I love how you make higher level mathematics engaging and hands on!

Reply
Math Giraffe link
9/25/2016 06:41:47 pm

Thanks so much, Sandy!
I am so glad you can use it :)
Enjoy! Have a great evening!
-Brigid

Reply
Tammy Smith
9/25/2016 07:50:24 pm

Thank you so much for sharing. I use scissor jacks to explain a lot of concepts in Geometry.

Reply
Math Giraffe link
9/26/2016 11:05:06 am

Hi Tammy,
Thanks so much! Great idea...
I'll have to check that out.
-Brigid

Reply
Adina R
12/4/2016 03:07:53 pm

Hi,

Thanks for the great puzzle using real-world a application! I wasn't able to figure out the reasoning behind the first one. How do you get the angles for the last two triangles from the center in the first example? Thanks!

Reply
Math Giraffe link
12/4/2016 04:17:04 pm

Hi Adina!
Thanks :)
for those, you have to use the largest triangle (the entire big one). We have the whole top angle already by using angle addition postulate for the three angles that form the peak, and we know that the base angles are congruent, because they're marked. We can write an equation using triangle sum theorem and go from there to get the other small angles :) Hope this helps. Thanks! Have a great night!
-Brigid

Reply
Jordan link
2/21/2018 04:02:02 pm

My wife and I have been looking for some roof trusses, and I think that some tips would be nice. I'm glad you talked about a few different trusses in your article, including a Howe truss. I'm going to have to look for a few good roof trusses and see what would be best for our job!

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Amanda
7/22/2019 03:53:21 pm

I LOVE THIS IDEA. I cannot WAIT to use this with my students!!!!! What a cool way to reimagine finding missing angles!

Reply
Math Giraffe link
7/24/2019 02:21:02 pm

Hi Amanda,
I hope they enjoy it! :)
Thanks so much! I am really glad you can use it.
Have a great school year!
-Brigid

Reply
Emma Brough
8/14/2020 07:45:16 am

I love this idea! It is a great way to use real world problems in Maths and I can link it to careers as well. Looking forward to using this with my pupils.

Thank you for sharing.
Emma

Reply
Kristofer Van Wagner link
10/5/2020 11:44:39 pm

I was never aware that there are many different options to roof trusses. My brother and his friends are planning to build a house from scratch for the homeless. I will share this information with him so that he knows which trusses offer more stability.

Reply
Olivia Smart link
5/31/2022 10:17:27 am

Thank you for explaining a bit about the geometry of roof trusses. I've been wondering about these since the trusses were put in our house this last week. I think this has helped me to understand how they work.

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Mia Evans link
7/22/2022 11:17:10 pm

I never took into account the fact that one must identify the pairs of similar and congruent angles in trusses. This is definitely a real-life representation of geometry that students can appreciate. Actually, I came upon this article because I was looking for designs that I will choose from, so I'll just ask truss suppliers to give me an idea of the process instead for more accurate decision-making.

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Becky link
2/24/2023 06:09:55 am

Thank you for the great resources and worksheets! They are very useful for teaching geometry and problem solving and will be a great help for teachers and students alike.

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commercial roofing CT link
3/23/2023 01:23:09 am

With the right calculations, you can accurately design and construct a roof truss for your house quickly and easily. Geometry is an important tool in the process of creating a roof truss that can support the weight of your home.

Reply



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