If the area of the rectangle shown below is equal to 10.
Calculate the perimeter of the rectangle.
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If the area of the rectangle shown below is equal to 10.
Calculate the perimeter of the rectangle.
Given that in a rectangle every pair of opposite sides are equal to each other, we can state that:
Now we can calculate the perimeter of the rectangle by adding all the sides together:
14
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?
Use the area formula backwards! Since Area = length × width, you can find length by dividing: length = Area ÷ width. In this problem: length = 10 ÷ 5 = 2.
A rectangle has four sides, but opposite sides are equal! So you have two lengths and two widths. The formula Perimeter = 2 × length + 2 × width accounts for all four sides.
Area measures the space inside the rectangle (square units), while perimeter measures the distance around the rectangle (linear units). They're completely different measurements!
Yes! is the same as adding all four sides. With length = 2 and width = 5:
In rectangles, it doesn't matter which you call length or width! The longer side is typically called length, but for calculations, you can use either dimension as long as you're consistent.
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