Tap a dashed line to break this irregular shape into two simple rectangles.
Calculate the area of each new rectangle. Drag the correct area block to its shape.
{{ item.val }}
{{ step2Pieces[0].w }}
{{ step2Pieces[0].h }}
{{ step2Pieces[0].area }}
{{ step2Pieces[1].w }}
{{ step2Pieces[1].h }}
{{ step2Pieces[1].area }}
Use the slider to add the two areas together to find the total area.
{{ step2Pieces[0].area }}
+
{{ sliderVal > 0 ? sliderVal : '?' }}
=
{{ step2Pieces[0].area + sliderVal }}
{{ step2Pieces[0].area }}
Perfect match!
Sometimes you need to subtract an empty space (the hole). Find the shaded area.
{{ problem.Ws }}
{{ problem.Hs }}
{{ problem.ws }}
{{ problem.hs }}
Large Rectangle minus Small Rectangle
{{ subInput || '?' }}
🏆
You did it!
You learned how to find the area of complex shapes by breaking them apart and putting them together.