Find missing angles in special triangles

Learning objectives

• Calculate missing angles in isosceles and equilateral triangles using angle sum properties
• Apply knowledge of triangle angle relationships to solve for unknown angles in various special triangles
• Demonstrate understanding of angle measures by solving challenging problems involving two-dimensional figures

How to use this worksheet

1. Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
3. Hand it out as classwork, homework, or a quick warm-up.