Proportion Reasoning

In order for two polygons to be similar, what must be true about the sides and angles?

• All sides and angles are congruent

• All sides and angles are proportional

• Sides are congruent, Angles are proportional

• Sides and proportional, Angles are congruent

Write and solve a proportion for corresponding sides. The pair of figures is similar. Find the missing side, x.

• x = 1

• x = 3

• x = 9

• x = 5

Solve for x.

• 3
• 5.3

• 27
• 12

• 2.4
• 6.67

• 5.6
• 11.2

26 is 5% of what number?

• 3

• 5

• 25.95

• 520

23% of all car accidents are related to texting while driving. If there were 138 accidents due to texting, how many total accidents occurred?

• 16

• 32

• 300

• 600

You spend about 4 hours in math class each week. What percent of the total time in a week is this? (Hint: 168 hours per week)

• 2,4%

• 4%

• 16,7%

• 57.1%