Mission progress
Finish the locks in any order. Each completed lock reveals one digit for this game’s final vault code.
🔒Lock 1
🔒Lock 2
🔒Lock 3
🔒Lock 4
🔒Lock 5
Code pieces found
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1
Laser Gate: Click the target angles
Click every card that matches the target angle type.
Choose the target angles, then check your answer.
2
Bridge Builder: Sort smallest to largest
Put the six angle cards in order from smallest to largest. Tap a card, then tap a place on the bridge. You can also drag cards.
Angle cards
Build the bridge from the smallest angle to the largest angle.
3
Type Tunnels: Classify the angles
Sort all nine angles into the correct tunnel. Tap a card, then tap a tunnel. You can also drag cards into a tunnel.
Unsorted angle cards
Place every card into a tunnel, then check your answer.
4
Mirror Beam: Draw two target angles
First draw a guided angle, then draw a new angle without the green guide bar.
Measurement 1 of 2
Target angle: —
Green guide bar is ON
—°
Tip: Start at the yellow dot. The flat ray is already drawn for you. Use the green guide for your first measurement.
Complete both measurements to unlock the mirror beam.
5
Straight-Line Shield: Make 180°
A straight angle is 180°. Click two cards that add together to make a straight angle.
Choose two angle cards
Choose two cards whose angles add to 180°.
🔓 Final Angle Vault
Enter the five digits you collected from the locks. When the code is correct, the lost protractor is freed!