Interpreting Scale Drawings in Geometry

The video tutorial explains how to interpret an 80 to 1 scale floor plan to determine the real-world dimensions and area of a living room. It covers the conversion of measurements from centimeters to meters and provides two methods for calculating the area in square meters.

What is the scale ratio used in Maya and Mabel's house plan?

• 80 to 1

• 100 to 1

• 50 to 1

• 75 to 1

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CCSS.7.G.A.1

If 1 cm on the floor plan represents 80 cm in reality, how many centimeters does 5 cm on the plan represent in the real world?

• 450 cm

• 400 cm

• 300 cm

• 500 cm

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CCSS.7.G.A.1

What is the real-world length of the living room if the floor plan shows it as 4 cm?

• 360 cm

• 400 cm

• 240 cm

• 320 cm

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CCSS.7.G.A.1

How do you calculate the area of the living room in square centimeters?

• Multiply the length by the width in centimeters

• Subtract the length from the width in centimeters

• Divide the length by the width in centimeters

• Add the length and width in centimeters

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of the living room in square centimeters?

• 120,000 cm²

• 128,000 cm²

• 130,000 cm²

• 125,000 cm²

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CCSS.HSG.CO.C.11

How many square centimeters are there in one square meter?

• 1,000 cm²

• 15,000 cm²

• 10,000 cm²

• 5,000 cm²

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CCSS.2.MD.A.2

What is the converted area of the living room from square centimeters to square meters?

• 12.8 m²

• 11.5 m²

• 12.0 m²

• 13.0 m²

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CCSS.2.MD.A.2

If the width of the living room on the floor plan is 5 cm, what is the actual width in meters?

• 3.5 m

• 4.5 m

• 3.2 m

• 4 m

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CCSS.7.G.A.1

What alternative method could be used to find the area in square meters directly?

• Add dimensions in centimeters then convert

• Subtract dimensions in centimeters then convert

• Multiply dimensions in centimeters then convert

• Convert dimensions to meters first then multiply

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CCSS.4.MD.A.2

What is the final area of the living room in square meters?

• 11.5 m²

• 12.8 m²

• 12.0 m²

• 13.0 m²

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CCSS.3.MD.C.7D