This file illustrates the special right triangle of angles 45°, 45° and 90°. Inside, the triangle is depicted with all of its angles and side lengths. The right angle is marked as a small square. To the right of the 90° angle is another angle represented by an arc, and its measure, 45°, is written to the left of it. Atop the right angle is another angle symbolized by an arc, and its measure, 45°, is written below it. The hypotenuse (the side opposite the right angle) is of length 1. The sides opposite of the 45° angles both have a side length of √2/2.
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