Shrinking and Scaling

The diagram above shows two similar polygons. Write a rule for finding the coordinates of a point on figure B from the corresponding point on figure A.

• The rule used is ​(x,y)→​(1.5​x,1.5​y) to the vertices of a polygon to get a new polygon.

• The rule used is ​(x,y)→​(2.5​x, 1.5​y) to the vertices of a polygon to get a new polygon.

• The rule used is ​(x,y)→​(1.5​x, 2.5​y) to the vertices of a polygon to get a new polygon.

• The rule used is ​(x,y)→​(2.5​x, 2.5​y) to the vertices of a polygon to get a new polygon.

The triangles are similar.  Find the value of each variable.

• x = 12 and y = 3

• x = 5 and y = 10

• x = 7 and y = 24

• x = 24 and  y = 7

The figures shown are similar.  Find the length of side "y"

• 24

• 36

• 25

• 40

A triangle is formed by the​ building's height and shadow. Another triangle is formed by the​ flagpole's height and shadow. Using the following​ diagram, find the height of the building.

• 140 ft

• 520 ft

• 80 ft

• 280 ft

What is the length of side RQ?

• 22 in.

• 30 in.

• 44 in.

• 55 in.

What is the area of the smaller figure?

• 31 yd²

• 44.6 yd²

• 103.3 yd²

• 62 yd²

If 40 apples can fit into 3 baskets, how many apples will fit into 12 baskets?

• 4 apples

• 160 apples

• 10 apples

• 240 apples

9 truckloads can ship 1200 boxes of underwear. How many boxes of underwear can be shipped in 3 truckloads?

• 400 boxes

• 3 boxes

• 3600 boxes

• 300 boxes

Jesse makes $39,000 per year for his job. How much money does he make after 3 years?

• $117,000

• $3,000

• $13,000

• $78,000

There are 520 centimeters in 5.2 meters. How many meters are in 260 centimeters?

• 2 meters

• 2.2 meters

• 2.6 meters

• 10.4 meters