If the area of the rectangle below is 63.
Calculate the perimeter of the rectangle.
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If the area of the rectangle below is 63.
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:
32
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?
Area and perimeter measure different things! Area tells you the space inside (63 square units), while perimeter tells you the distance around the edges. You need the actual side lengths.
Look at the diagram! The length is usually the longer side (9 units) and the width is the shorter side (7 units). But for perimeter, it doesn't matter which is which!
Both work! You can add all four sides: OR use the formula:
The perimeter stays the same! Whether the rectangle is horizontal, vertical, or tilted, the side lengths don't change, so the perimeter remains 32 units.
Verify the area matches: ✓ Then ensure your perimeter uses the correct sides. Also check that opposite sides are equal in your calculation.
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