Lesson 3 practice triangles 2026

1. Click ‘Get Form’ to open the lesson 3 practice triangles document in the editor.
2. Begin by entering your name, date, and period at the top of the form. This personalizes your work and helps keep track of submissions.
3. Proceed to each triangle problem. For each set of angles provided, identify the missing angle 'x' by applying the triangle sum theorem, which states that the sum of all angles in a triangle equals 180°.
4. In the designated space next to each triangle, input your calculated value for 'x'. Ensure you double-check your calculations for accuracy.
5. For problems involving ratios (like questions 16 and 17), calculate each angle based on the given ratio and write them down in their respective fields.

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