B2C Unit 7, Lesson 1 Warm-Up

B2C Unit 7, Lesson 1 Warm-Up

Scale Factor

Multiple Choice

Polygon B is a scaled copy of Polygon A. What is the scale factor from Polygon A to Polygon B?

• 0.5

• 1.5

• 2

• 2.5

Multiple Select

Polygon B is a scaled copy of Polygon A. Find the missing length of each side marked with ? in Polygon B.

• 2.5

• 3

• 5

• 10

Multiple Select

Polygon B is a scaled copy of Polygon A. Determine the measure of each angle marked with ? in Polygon A.

• 26.5

• 41

• 53

• 82

Proportional Relationships

Multiple Choice

The table represents a proportional relationship. Find the constant of proportionality.

• 0.32

• 3.14

• 4.28

• 12.56

Multiple Choice

The table represents a proportional relationship. Write an equation that represents the situation.

• C=12.56d

• d=3.14C

• C=3.14d

• d=12.56C

Measuring Circles

Multiple Choice

Jada paints a circular table that has a diameter of 37 inches. What is the area of the table?

• 58 $$in^2$$  

• 116 $$in^2$$  

• 1,075 $$in^2$$  

• 4,299 $$in^2$$  

Multiple Choice

The circumference of Tyler's bike tire is 72 inches. What is the diameter of the tire?

• 11 inches

• 23 inches 

• 114 inches

• 226 inches