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Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
Right Triangle Trigonometry Unit for High School Geometry
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What others say

"I was out for a month of paternity leave this semester and gave this unit to my long-term substitute to cover this material. It was easy to follow for both my sub and the students. Will most likely use it again when I teach this material next semester."
star
Max S.
"My credit recovery students enjoyed the notes and practice as it was easy for them to follow and practice with...it was the first time many of them felt successful! Thank you!"
star
Stephanie H.

Description

Looking for a comprehensive resource to teach right triangles and right triangle trigonometry? This complete right triangles unit is the 6th unit in my Geometry curriculum and covers all the essential topics to help your students master right triangle concepts. Perfect for on-level or lower-level/special education math classes. This unit includes guided notes, worksheets, quizzes, tests, activities, posters, video lessons, and all answer keys for a complete and easy-to-use teaching experience!


Note: This unit is best suited for on-level or lower-level/special education math classes. Supplements will most likely be needed for an honors or upper-level math class.

Topics Covered:
✅ Special Right Triangles
✅ Pythagorean Theorem
✅ Trigonometric Ratios (including ratios of complementary angles)
✅ Finding missing sides/angles with trigonometric ratios
✅ Solving right triangles
✅ Trig. ratios in similar right triangles
✅ Geometric mean
✅ Application problems

This is the 6th unit in my Geometry curriculum.

Included Products:


→ Hey Geometry teacher! Grab 6 days of FREE circle lessons. Click here to send them to your inbox.


Copyright © Lindsay Bowden.

Permission to copy for single classroom use only. This product should only be used by the teacher who purchased it. This product is not to be shared with other teachers. Please purchase additional licenses if you intend to share this product or if this is to be used by more than one teacher.

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You can receive TPT store credits to use on future purchases by leaving feedback on products you buy! Just click on "My Purchases" under "Buy"!


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Right Triangle Trigonometry Unit for High School Geometry

$27.00
$30.00
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Highlights

Grades icon
Grades
Standards icon
Standards
Pages
80+
Answer Key
Included
Teaching Duration
2 Weeks

What others say

"I was out for a month of paternity leave this semester and gave this unit to my long-term substitute to cover this material. It was easy to follow for both my sub and the students. Will most likely use it again when I teach this material next semester."
star
Max S.
"My credit recovery students enjoyed the notes and practice as it was easy for them to follow and practice with...it was the first time many of them felt successful! Thank you!"
star
Stephanie H.

Bonus

Unit Plan & Video Lesson Links

Description

Looking for a comprehensive resource to teach right triangles and right triangle trigonometry? This complete right triangles unit is the 6th unit in my Geometry curriculum and covers all the essential topics to help your students master right triangle concepts. Perfect for on-level or lower-level/special education math classes. This unit includes guided notes, worksheets, quizzes, tests, activities, posters, video lessons, and all answer keys for a complete and easy-to-use teaching experience!


Note: This unit is best suited for on-level or lower-level/special education math classes. Supplements will most likely be needed for an honors or upper-level math class.

Topics Covered:
✅ Special Right Triangles
✅ Pythagorean Theorem
✅ Trigonometric Ratios (including ratios of complementary angles)
✅ Finding missing sides/angles with trigonometric ratios
✅ Solving right triangles
✅ Trig. ratios in similar right triangles
✅ Geometric mean
✅ Application problems

This is the 6th unit in my Geometry curriculum.

Included Products:


→ Hey Geometry teacher! Grab 6 days of FREE circle lessons. Click here to send them to your inbox.


Copyright © Lindsay Bowden.

Permission to copy for single classroom use only. This product should only be used by the teacher who purchased it. This product is not to be shared with other teachers. Please purchase additional licenses if you intend to share this product or if this is to be used by more than one teacher.

Did you know?

You can receive TPT store credits to use on future purchases by leaving feedback on products you buy! Just click on "My Purchases" under "Buy"!


Connect with me!

Blog

Instagram

Facebook

Pinterest

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Reviews

4.9
Rated 4.92 out of 5, based on 24 reviews
24
ratings
5
22
4
2
3
0
2
0
1
0
Mostly used with 10th grade
Reviews
9
19
3
9th
10th
11th
All verified TPT purchases
Full Unit Ready For Anyone To Use
Rated 5 out of 5
April 24, 2026
Met expectations
Great value
Standards-aligned
I was out for a month of paternity leave this semester and gave this unit to my long-term substitute to cover this material. It was easy to follow for both my sub and the students. Will most likely use it again when I teach this material next semester.
Max S.
62 reviews • North Carolina
Grades taught: 9th, 10th
clean cut resource for trig
Rated 5 out of 5
February 9, 2026
Great job putting this together for geometry trig! Definitely well used!
Susan York
(TPT Seller)
276 reviews • Florida
Grades taught: 4th
Great resource!
Rated 5 out of 5
August 22, 2025
Met expectations
Great value
Standards-aligned
Thank you! The notes were very great for my students, and I loved the quizzes and test.
Rachel L.
177 reviews • North Carolina
Grades taught: 9th, 10th
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Rated 5 out of 5
November 6, 2024
My credit recovery students enjoyed the notes and practice as it was easy for them to follow and practice with...it was the first time many of them felt successful! Thank you!
Stephanie H.
91 reviews
Grades taught: 10th, 11th
Rated 5 out of 5
February 9, 2024
My students and I loved this resource! Everything is well laid out and the practices are great!
Brittany Hanes
(TPT Seller)
91 reviews
Grades taught: 10th
Rated 5 out of 5
September 1, 2023
Love her materials. Great for visualization, convenient, easy to download, and engaging for students.
Christine S.
128 reviews
Grades taught: 10th
Student populations: Learning difficulties
Rated 5 out of 5
March 29, 2023
Geometry is a new prep for me this year and this resource saved me so much time and energy. For my honors classes, I did 2 of the lessons instead of 1 a day. I also used the editable quizzes to increase rigor. Sometimes I would use the traditional quiz for my honors classes and the mini quiz for my on level classes. I really liked the order of this unit. Thank you!
82 reviews
Grades taught: 9th, 10th, 11th
Rated 5 out of 5
March 9, 2023
This was a life saver this year. Our district changed our books (Mathia-Carnegie) and it's just awful. I will definitely purchase more units. Thank you!
Colleen Glidden
(TPT Seller)
4 reviews
Grades taught: 10th
Student populations: Emerging bilinguals

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
Explain and use the relationship between the sine and cosine of complementary angles.
Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
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