
Master finding missing lengths in Grade 9 geometry through guided video lessons with embedded comprehension checks. This interactive video provides active learning opportunities to strengthen your understanding of geometric problem-solving techniques.

11 questions
Applying the Pythagorean Theorem: Finding Missing Lengths
Interactive Video
•
6th - 10th Grade

11 questions
Finding Missing Side Lengths with the Pythagorean Theorem
Interactive Video
•
9th Grade

11 questions
Finding Missing Side Lengths with Perimeter
Interactive Video
•
6th - 10th Grade

11 questions
Finding Missing Side Lengths in Right Triangles
Interactive Video
•
6th - 10th Grade

11 questions
Finding Missing Side Lengths with Similar Figures
Interactive Video
•
6th - 10th Grade
11 questions
Finding Missing Side Lengths with the Pythagorean Theorem
Interactive Video
•
6th - 10th Grade
11 questions
Finding Missing Side Lengths in Right Triangles
Interactive Video
•
9th Grade
11 questions
Finding Missing Side Lengths in Special Right Triangles
Interactive Video
•
6th - 10th Grade
11 questions
Finding Perimeter of Composite Figures with Missing Sides
Interactive Video
•
6th - 10th Grade
11 questions
Finding Missing Side Lengths with Trig Ratios
Interactive Video
•
8th - 12th Grade
11 questions
Exploring the Pythagorean Theorem
Interactive Video
•
6th - 10th Grade
Finding missing lengths represents a fundamental skill in Grade 9 geometry that bridges basic measurement concepts with advanced problem-solving techniques. These interactive videos available through Wayground (formerly Quizizz) deliver guided video lessons that systematically teach students how to calculate unknown side lengths in various geometric figures using the Pythagorean theorem, similar triangles, and proportional relationships. Each video incorporates embedded questions and comprehension checks that pause instruction at critical moments, allowing students to actively engage with the content and demonstrate their understanding before progressing to more complex applications. The interactive format ensures students develop strong analytical skills while building confidence in applying geometric formulas and reasoning through multi-step problems involving right triangles, polygons, and coordinate plane scenarios. Wayground (formerly Quizizz) empowers teachers with access to millions of teacher-created interactive video resources specifically designed for geometry instruction at the Grade 9 level. The platform's robust search and filtering capabilities enable educators to quickly locate videos that align with curriculum standards and target specific learning objectives related to finding missing lengths in geometric contexts. Teachers can customize video content to match their students' skill levels, incorporating differentiation tools that support both remediation for struggling learners and enrichment opportunities for advanced students. The digital-first delivery format allows for seamless integration into classroom instruction, homework assignments, and independent study sessions, while comprehensive analytics help educators identify areas where students need additional skill reinforcement and plan targeted interventions to strengthen geometric reasoning abilities.

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