9/29 .. Scaling and Area

How do you find the area of a rectangle?

• Length + Length + Length + Length
• Length + Width
• Length x Width
• Width x Width

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Find the area of this rectangle.

• 28 ft²

• 98 ft²

• 49 ft²

• 14 ft²

What is the area of this rectangle?

• 21 centimeters

• 42 centimeters

• 108 square centimeters

• 99 square centimeters

Find the area of this rectangle.

• 19 km²

• 181 km²

• 38 km²

• 90 km²

The area of this rectangle is 90 km². If a scaled copy of this rectangle is made using a scale factor of 5, then what is the area of the copy?

• 210 km²

• 450 km²

• 4500 km²

• 2,250 km²

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

A square has an area of 225 m². If a copy is made using a scale factor of 3, then what is the area of the copy?

• 75 m²

• 675 m²

• 2,025 m²

• 1,350 m²

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