Scaled Area

Explain how the scale factor affects the area of a rectangle when it is scaled up.

• The area of the rectangle is multiplied by the square of the scale factor.

• The scale factor has no impact on the area of the rectangle

• The area of the rectangle is subtracted by the scale factor

• The area of the rectangle is divided by the scale factor

If the area of a rectangle is 20 square units and it is scaled by a factor of 2, what is the new area?

• 40

• 80

• 10

• 100

A rectangle has an area of 36 square units. If it is scaled by a factor of 3, what is the new area?

• 324

• 18

• 72

• 108

If the area of a rectangle is 45 square units and it is scaled by a factor of 5, what is the new area?

• 1125

• 500

• 250

• 225

If the area of a rectangle is 16 square units and it is scaled by a factor of 4, what is the new area?

• 64

• 32

• 256

• 128

What is the formula to calculate the area of a scaled rectangle?

• Area = Length - Width

• Area = Length + Width

• Area = Length x Width

• Area = Length / Width

Why is it important to consider the scale factor when dealing with scaled copies of shapes?

• Shapes remain identical regardless of the scale factor

• The scale factor has no impact on the accuracy of the shapes

• Ignoring the scale factor leads to faster calculations

• It is important to consider the scale factor to ensure accurate measurements and proportions when dealing with scaled copies of shapes.

What is the formula to find the area of a scaled figure?

• Divide the area of the original figure by the scale factor squared.

• Subtract the area of the original figure from the scale factor squared.

• Add the area of the original figure to the scale factor squared.

• Multiply the area of the original figure by the scale factor squared.

If the length of a side of a square is doubled, how does the area change?

• The area increases by a factor of 2.

• The area decreases by a factor of 2.

• The area remains the same.

• The area increases by a factor of 4.

If the dimensions of a rectangle are tripled, how does the area change?

• The area increases by a factor of 3.

• The area decreases by a factor of 3.

• The area increases by a factor of 9.

• The area remains the same.