8th Grade Pythagorean Theorem Worksheets

8th Grade Pythagorean Theorem: find missing sides of right triangles and distances between points. Every worksheet is free, prints as a PDF with an answer key, and can be assigned online. The ones teachers open most are first.

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Using Pythagorean theorem

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• Identify the hypotenuse and the two legs in a right triangle.
• Use the Pythagorean theorem (a² + b² = c²) to find the missing side c.
• Square the leg lengths and add them correctly before solving for c.
• Take a square root to get the final length of c.

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Finding Angle between Two Points

• Find the angle a point makes from the origin (0,0) on a coordinate grid.
• Measure or calculate the angle in degrees from the positive x-axis to the point.

More 8th grade topics

Square Roots & Irrational Numbers 16Identifying Functions 9Transformations 5Scientific Notation 7Slope & Rate of Change 8Comparing & Modeling Linear Functions 11Laws of Exponents 3Linear Equations & Systems 2Congruent & Similar Figures 5Angles in Triangles 3Volume of Cylinders, Cones & Spheres 2