Geometry
Slide to transform
Move the piece to turn the parallelogram into a rectangle.
arrow_forward
check_circle
It makes a rectangle!
Tap the height
Which line shows the true height? It must form a 90° angle with the base.
celebration
Correct! Height is perpendicular to the base.
Drag to complete
Drag the orange triangle to make a parallelogram.
Calculate the Area
Use the formula to find the area of this {{s4.type}}.
Area
{{ s4.input || '0' }}
Hint: Area = base × height
Hint: Area = ½ × base × height
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Geometry Master!
You've mastered finding the area of parallelograms and triangles. Great job!