Unlock the Seals of Ancient Geometry!
👉 Exploration Rules:
🛡️ [Refraction Barrier] (Lv 1~4): Distinguish between "Complementary (90°)" and "Supplementary (180°)" to activate the correct optical shield.
🌅 [True Contour] (Lv 5~8): What is an "Exterior Angle"? Don't fall for the 360° reflex angle trap! It's the angle between an extended side and the adjacent side (supplementary to the interior angle)!
🌌 [Starlight Convergence] (Lv 9~12): Ultimate trial of the Exterior Angle Theorem! An exterior angle equals the "sum of the two remote (non-adjacent) interior angles".
⚠️ You must submit a prediction first! Correct answers grant 20 pts, falling into a trap deducts 10 pts. Observe the animation to verify your intuition!
🛡️ [Refraction Barrier] (Lv 1~4): Distinguish between "Complementary (90°)" and "Supplementary (180°)" to activate the correct optical shield.
🌅 [True Contour] (Lv 5~8): What is an "Exterior Angle"? Don't fall for the 360° reflex angle trap! It's the angle between an extended side and the adjacent side (supplementary to the interior angle)!
🌌 [Starlight Convergence] (Lv 9~12): Ultimate trial of the Exterior Angle Theorem! An exterior angle equals the "sum of the two remote (non-adjacent) interior angles".
⚠️ You must submit a prediction first! Correct answers grant 20 pts, falling into a trap deducts 10 pts. Observe the animation to verify your intuition!
Level 1
Preparing...
✍️ Predict the correct angle before activation: