Calculating Areas of Compound Shapes

This video tutorial covers the concept of area, starting with a basic understanding of what area is and how to calculate it for simple shapes like squares and rectangles. It introduces the formula for calculating the area of rectangles and extends this knowledge to compound shapes, which are larger shapes made up of smaller rectangles. The tutorial provides step-by-step guidance on how to split compound shapes into smaller rectangles, calculate their areas, and sum them up to find the total area. It also addresses common challenges, such as missing measurements, and offers strategies to solve these problems. The video concludes with practice questions to reinforce learning.

What is the area of a square with sides of 1 cm?

• 2 cm squared

• 2 cm

• 1 cm squared

• 1 cm

Tags

CCSS.3.MD.C.7B

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How do you calculate the area of a rectangle?

• Length / Width

• Length x Width

• Length + Width

• Length - Width

Tags

CCSS.3.MD.C.7B

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What is the area of a rectangle with a base of 6 cm and height of 4 cm?

• 12 cm squared

• 24 cm squared

• 10 cm squared

• 20 cm squared

What unit is used to measure area?

• Centimeters

• Meters

• Square centimeters

• Square meters

Tags

CCSS.3.MD.C.7B

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What is the correct formula for the area of a rectangle?

• Area = Length x Width

• Area = Length / Width

• Area = (Length + Width) x 2

• Area = Length + Width

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CCSS.3.MD.C.5A

How do you adjust units when calculating area in meters instead of centimeters?

• No adjustment needed

• Divide by 100

• Multiply by 100

• Square the conversion factor

How do you find the area of a compound shape?

• Add its length and width

• Divide it into triangles

• Divide it into rectangles

• Multiply its length by width

Tags

CCSS.3.MD.C.7D

What is the first step in solving a compound shape with missing measurements?

• Guess the missing lengths

• Calculate the area of visible shapes

• Fill in all missing measurements

• Divide the shape into equal parts

Tags

CCSS.3.MD.C.7D

If a compound shape is divided into two rectangles with areas of 4 cm squared and 12 cm squared, what is the total area?

• 20 cm squared

• 8 cm squared

• 16 cm squared

• 24 cm squared

Tags

CCSS.3.MD.C.7D

In a compound shape problem, if one rectangle's area is 54 cm squared and another's is 28 cm squared, what is the total area?

• 110 cm squared

• 26 cm squared

• 82 cm squared

• 72 cm squared

Tags

CCSS.3.MD.C.7D