Calculate the perimeter of the rectangle below.
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Calculate the perimeter of the rectangle below.
To solve this problem, we'll start by identifying the given dimensions of the rectangle: the length and the width .
Next, we apply the perimeter formula for a rectangle, which is given by:
Substitute the given values for the length and width into the formula:
Calculating further, we find:
Thus, the perimeter of the rectangle is . Among the provided answer choices, this corresponds to choice 1.
40
Look at the rectangle ABCD below.
Side AB is 6 cm long and side BC is 4 cm long.
What is the area of the rectangle?
A rectangle has four sides: two lengths and two widths. The formula P = 2(l + w) accounts for both pairs of opposite sides that are equal in length.
Yes! You can calculate 18 + 2 + 18 + 2 = 40. This gives the same answer as the formula P = 2(18 + 2) = 40, but the formula is usually faster.
It doesn't matter! Whether the 18 is horizontal or vertical, perimeter stays the same. The formula P = 2(l + w) works for any rectangle orientation.
For perimeter calculations, it doesn't matter which you call length or width! The formula P = 2(a + b) works the same way regardless of which dimension you pick first.
Since the problem shows dimensions as 18 and 2 without specific units, your answer should just be the number 40. In real problems, use the same units as given (cm, inches, etc.).
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