Question

trish wants to put up a fence around a rectangular garden. the garden measures 2 feet by 21 feet. how much fencing material is needed? a 42 feet b 46 feet c 65 feet d 23 feet

Explanation:

Step1: Recall perimeter formula

The perimeter of a rectangle is $P = 2(l + w)$, where $l$ is length and $w$ is width.

Step2: Identify length and width

Here, $l = 21$ feet and $w = 2$ feet.

Step3: Substitute values

$P=2(21 + 2)$.

Step4: Calculate inside parentheses

$21+2 = 23$.

Step5: Multiply

$2\times23=46$ feet.

Answer:

B. 46 feet