volume_mute
Complete the Perimeter Formulas and the Caution Rule
publish date: 2026/05/16 20:57:5.364434 UTC
Drag the correct term into each placeholder to complete both formulas and the caution rule.
Square: \(P = \) (1) \(\times s\), where \(s\) is the length of one (2).
Rectangle: \(P = 2 \times\) (3) \(+ 2 \times\) (4), where \(l\) is the length and \(w\) is the width.
Caution: All side lengths must be in the same (5) before adding.
Please drag and drop the selected option in the right place or type it instead
4
side
l
w
units
Correct Answer
(1) 4
(2) side
(3) l
(4) w
(5) units
Explanation
Square: \(P = 4s\) — multiply the length of one side by 4.
Rectangle: \(P = 2l + 2w\) — two lengths plus two widths.
Caution: Always convert all measurements to the same units before finding the perimeter — for example, convert feet to inches or metres to centimetres.
Reference
Mathematics for college students