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Special right triangles including 45-45-90, 30-60-90, 3-4-5, and 5-12-13 with side ratios and angle measures.

Diagram showing four types of special right triangles: 45-45-90, 30-60-90, 3-4-5, and 5-12-13, with labeled angles and side lengths.

Diagram showing four types of special right triangles: 45-45-90, 30-60-90, 3-4-5, and 5-12-13, with labeled angles and side lengths.

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