Step 1: The Rhombus

Drag to set Area

Drag the vertices to make a rhombus with
Area = {{ s1.targetArea }}

Diagonal 1
{{ 2 * s1.x }}

Diagonal 2
{{ 2 * s1.y }}

Current Area

{{ s1.x * s1.y * 2 }}

Step 2: Heron's Formula

Drag values to formula

A triangle has sides a={{s2.a}}, b={{s2.b}}, c={{s2.c}}.
Its semi-perimeter is s = {{s2.s}}.
Assemble the formula to find the area!

All slots filled!
Area = √
{{ s2.chips.find(c=>c.id===slotId).val }}
Area = {{ s2.area }}
Step 3: Regular Polygon

Slide to build

Slide to build a Regular Hexagon (6 sides)

Sides: {{ s3.n }}

Hexagon Built!

Now, slide to find the total Area:

Area of 1 triangle =

Total Area

Step 4: Composite Figure

Tap to solve

Tap the shape to shade the region:
Square Area - Circle Area

Correct! Now tap the numbers below to match.

Area = -
🏆

Area Master!

You conquered polygons, rhombuses, and circles with perfectly calculated areas!