Unit 3B Test Review

Find missing side

• 5
• 7
• 9
• 11

What is the scale factor from the small shape to the big shape?

• 1/2
• 7/3
• 2
• 10/3

This scale drawing shows a parking lot. What is the length of the longer side of the actual lot? 

• 63 m
• 235 m
• 315 m
• 630 m

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 large rectangle is a scaled copy of the smaller one. Compare the area of the larger rectangle to the area of the smaller one? (Image is not drawn to scale)

• 4 times larger

• 8 times larger

• 16 times larger

• 32 times larger

A home decorator is adding new flooring to a living room using the blueprint below. What is the actual length and width of the living room?

• Length: 20 inches

  Width: 16 inches

• Length: 2.5 feet

  Width: 2 feet

• Length: 20 feet

  Width: 16 feet

• Length: 10 feet

  Width: 8 feet

What is the actual perimeter of the living room?

• 20 inches

• 40 inches

• 80 feet

• 72 feet

What is the area of the actual living room?

• 20 in²

• 320 ft²

• 9 in²

• 108 ft²

The area of Rectangle ABCD is 20 square feet. A similar Rectangle WXYZ has an area of 180 square feet.

If Rectangle ABCD has a width of 4 feet and a length of 5 feet, what must be the length and width of Rectangle WXYZ?

• Width: 12 feet Length: 15 feet

• 1. Width: 20 feet

  2. Length: 90 feet

• Width: 36 feet

  Length: 45 feet

• 1. Width: 10 feet

  2. Length: 18 feet

Triangle ADE is graphed on a coordinate grid.

Part A: What is the slope of the line containing line segment AC?

• 3/2

• 2/3

• -3/2

• -2/3