The Cylinder Net
A cylinder is made of two circles and a wrapped rectangle.
Slide to unroll it!
Rolled
Unrolled
Build the Formula
Drag the area formulas to the correct parts of the unrolled cylinder.
Radius , Height
The Cone Net
A cone's lateral surface unrolls into a sector (slice of a circle).
Slide to unroll it!
Folded
Unrolled
Calculate Cone Area
Tap the values to complete the formula.
Base Area
=
{{s4.r1 || '?'}}
Lateral Area
=
{{s4.r2 || '?'}}
{{s4.l || '?'}}
Total Area
=
Real World Challenge! 🏆
You are making an OPEN-TOP cylindrical cup.
Radius , Height .
1. Tap the pieces needed for an open top container.
2. Calculate Area
Master Builder!
You've successfully mastered the surface area of cylinders and cones.