Scaling and Area

The area of this rectangle is 90 km². If a scaled copy of this rectangle is made using a scale factor of 3, then what is the area of the copy?

• 270 km²

• 810 km²

• 30 km²

• 156 km²

The area of this rectangle is 90 km². If a scaled copy of this rectangle is made using a scale factor of 1/3, then what is the area of the copy?

• 36 km²

• 20 km²

• 10 km²

• 90 km²

If a scaled copy of this rectangle is made using a scale factor of 10, then what is the area of the copy?

• 36 cm²

• 360 cm²

• 3600 cm²

• 36000 cm²

If a scaled copy of this rectangle is made using a scale factor of 1/2, then what is the area of the copy?

• 18 cm²

• 9 cm²

• 4.5 cm²

• 2 cm²

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

In the figure above, a dilation from A to A' has occurred. What is the scale factor?

Mathematical Equivalence

ON

The area of this rectangle is 40 cm². If a scaled copy of this rectangle is made using a scale factor of 3, then what is the new area?

• 360 cm²

• 1600 cm²

• 240 cm²

• 120 cm²

The area of this rectangle is 40 cm². A scaled copy of this rectangle is made using a scale factor of 3, then how many times larger is the area of the copy?

• 3 times larger

• 9 times larger

• 40 times larger

• 360 times larger

The area of this rectangle is 40 cm². A scaled copy of this rectangle is made using a scale factor of 10, then how many times larger is the area of the copy?

• 100 times larger

• 10 times larger

• 4 times larger

• 40 times larger

The area of this rectangle is 40 cm². A scaled copy of this rectangle is made using a scale factor of 1/2, then how mant times larger is the area of the copy?

• 1/2 times larger

• 2 times larger

• 4 times larger

• 1/4 times larger