KiwiBee printable
Solve a triangle
Free printable Algebra 2 math worksheet for "Solve a triangle" — practice laws of sines and cosines. No-prep, print or assign online.
This worksheet provides challenging problems focused on solving triangles using the Laws of Sines and Cosines. Teachers can use it to reinforce students' understanding of trigonometric relationships in oblique triangles and to practice applying formulas for real-world and theoretical problems. Ideal for Algebra 2 classes, it supports skill development in trigonometry and problem-solving at a high difficulty level.
Learning objectives
- Apply the Law of Sines to find missing sides and angles in oblique triangles.
- Use the Law of Cosines to solve for unknown sides or angles in non-right triangles.
- Determine all side lengths and angle measures to completely solve a triangle.
Answer Key

How to use this worksheet
- Select “Sign in to download free”, then sign in with Google or email to get the PDF from KiwiBee Printables.
- Print at home or in class for High School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Likes & comments
See what other teachers think and share a helpful note.
Loading likes and comments…
Create more worksheets in our Worksheet Studio
Generate fresh worksheets for any grade, topic, and language — free.
Open the Worksheet StudioRelated worksheets
Area of a triangle: Law of Sines
Worksheets
hard
Ages 14–18
Area of a triangle: sine formula
Worksheets
hard
Ages 14–18
Law of Cosines
Worksheets
hard
Ages 14–18
Law of Sines
Worksheets
hard
Ages 14–18
Add and subtract scalar multiples of matrices
Worksheets
hard
Ages 14–18
Domain and range of absolute value functions: graphs
Worksheets
hard
Ages 14–18
Complete a function table: absolute value functions
Worksheets
hard
Ages 14–18
Add and subtract scalar multiples of matrices
Worksheets
hard
Ages 14–18
