Understanding Area and Dimensions of Rectangles

The video tutorial explains how to find the width and length of a rectangle using its area. It begins with a problem involving a rectangle with an area of 80 square centimeters and a known length of 10 centimeters, guiding viewers to calculate the width. The tutorial then presents another example where the area is 24 square meters and the width is 4 meters, demonstrating how to find the length. The video emphasizes using the formula for the area of a rectangle, which is the product of its length and width, to solve these problems.

What is the shape of the picture mentioned in the problem?

• Square

• Triangle

• Rectangle

• Circle

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Which formula is used to calculate the area of a rectangle?

• Length x Width

• Length + Width

• Length / Width

• Length - Width

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

If the area of a rectangle is 80 square centimeters and the length is 10 centimeters, what is the width?

• 6 cm

• 7 cm

• 8 cm

• 9 cm

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Which of the following is NOT a step in solving for the width of a rectangle?

• Knowing the length

• Using the area formula

• Knowing the area

• Knowing the width

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CCSS.6.G.A.1

What is the area of the second rectangle problem discussed?

• 20 square meters

• 26 square meters

• 22 square meters

• 24 square meters

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CCSS.2.MD.A.3

In the second problem, what is the width of the rectangle?

• 5 meters

• 4 meters

• 3 meters

• 2 meters

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the length of the rectangle in the second problem if the area is 24 square meters and the width is 4 meters?

• 8 meters

• 6 meters

• 7 meters

• 5 meters

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the first step in solving for the length of a rectangle when the area and width are known?

• Add the width to the area

• Multiply the area by the width

• Divide the area by the width

• Subtract the width from the area

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Why is it unnecessary to have a visual representation of the rectangle in the second problem?

• The area is too small

• The dimensions are unknown

• The picture is too complex

• The formula is sufficient

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What mathematical operation is used to find the missing dimension of a rectangle when the area and one dimension are known?

• Division

• Addition

• Subtraction

• Multiplication

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3