未知の辺、角度、正確な根号（√）、面積、高さをリアルタイム動的図面と完全な途中式・数学的証明とともに計算します。
Speed up your geometry solving with the exact radical ratios for 45-45-90 isosceles right triangles (1 : 1 : √2) and 30-60-90 triangles (1 : √3 : 2).
Determine if three side lengths form an acute, right, or obtuse triangle using the converse rule: comparing a² + b² with c².
How to find distance in 3D space using d = √(x² + y² + z²). Learn the derivation from two consecutive 2D triangles and real-world box diagonals.
From construction, surveying, and carpentry to 3D video game physics, navigation, and screen aspect ratios: how Pythagoras powers the modern world.
Master primitive Pythagorean triples (3-4-5, 5-12-13, 8-15-17), learn Euclid's generation formula (m²-n², 2mn, m²+n²), and explore infinite families.
Explore the most famous mathematical proofs of a² + b² = c², including President James A. Garfield's trapezoid proof, Euclid's Windmill, and geometric rearrangement.