{{ stepData.title }}
{{ stepData.action }}
Walk the border to find the perimeter!
{{ edge.length }}
?
+
=
{{ s1.totalPerimeter }}
P
A square has 4 equal sides.
Make Perimeter = {{ s2.targetPerimeter }}
{{ s2.side }}
{{ s2.side }}
{{ s2.side }}
{{ s2.side }}
Shortcut
4 × {{ s2.side }} = {{ s2.side * 4 }}
Unfold the rectangle's sides to measure its perimeter.
{{ s3.l }}
{{ s3.w }}
?
?
Perimeter Track
{{ item.val }}
Drop sides here
Total = {{ s3.l * 2 + s3.w * 2 }}
{{ item.val }}
Find the missing length.
Total Perimeter = {{ s4.targetP }}
Missing Side
{{ s4.s3 }}
{{ s4.s1 }} + {{ s4.s2 }} + {{ s4.s3 }} = {{ s4.s1 + s4.s2 + s4.s3 }}
Perimeter Master!
You measured all the boundaries perfectly.