Question

Write the rule using variables for the following situation.

The length of the side of a regular heptagon is denoted by $l$. Express the perimeter $p$ of the heptagon in terms of $l$.

Answer 1

Regular heptagon

Regular heptagon - a polygon with 7 sides. All of them are of equal length.

Length of the side of the regular heptagon $=l$ ( given)

then, The Perimeter of the heptagon $=$ Sum of all the sides of the heptagon

The Perimeter of the heptagon $=$$l+l+l+l+l+l+l$ or $7\left(lengthofoneside\right)$

$p=7\left(l\right)$

Thus, the expression for the perimeter $p$ of a regular expression,

$p=7l$.