Thinking Summary · Step 1
Mastered[object Object]
[Discovery] Slide the radius to 4 cm and read the live πr² readout. Then type the area you see.
Step 1
Active Step[Discovery] Slide the radius to 4 cm and read the live πr² readout. Then type the area you see.
Circle Area
Slide the radius to 4 cm, then type the area you see.