The area of the rectangle below is equal to 45.
Calculate the size of ED.
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The area of the rectangle below is equal to 45.
Calculate the size of ED.
The area of rectangle ABCD equals length times width.
Let's write down the known data in a formula to find side CD:
Let's divide both sides by 5:
We know that in a rectangle, each pair of opposite sides are equal, therefore:
Since we are given that ED equals one-third of CD, we can substitute the known data and calculate side ED:
Remember that AB equals CD
3
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?
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