Geometry and Trigonometry | Triangles | Notes and Practice

Lesson Review Available

Review the foundation notes with TTA Pro Mr.O before solving. If this skill drill is part of an anchor lesson, the notes stay available during practice.

Objective: By the end of this lesson you can solve every Digital SAT triangle question across six levels: Level 1 recognition of triangle notation and the 180-degree angle sum, Level 2 setups for isosceles algebra and Pythagorean equations, Level 3 core procedures with triples, radicals, and special right triangles, Level 4 switching between diagrams, proportions, and the coordinate plane, Level 5 rejecting SSA traps, inverted ratios, and linear-instead-of-squared area scaling, and Level 6 choosing between hand work and Desmos under time pressure.