Accel6 Unit 5 Lesson 12 Practice Problems

1. Diego measured the diameter and circumference of several circular objects and recorded his measurements in the table. Which measurement is inaccurate?

• half dollar coin: diameter 3 cm, circumference 10 cm

• flying disc: diameter 23 cm, circumference 28 cm

• jar lid: diameter 8 cm, circumference 25 cm

• flower pot: diameter 15 cm, circumference 48 cm

Tags

CCSS.7.G.B.4

2. Complete the table. Use one of the approximate values for π discussed in class (for example 3.14, 22/7, 3.1416). What is the circumference of a hula hoop with a diameter of 35 in?

Round your answer to the nearest Decimal

• 110 in

• 109.9 in

• 111 in

• 110.5 in

Tags

CCSS.7.G.B.4

3. Complete the table. Use one of the approximate values for π discussed in class (for example 3.14, 22/7, 3.1416). What is the diameter of the circular pond with a circumference of 556 ft?

Round your answer to the nearest whole number

• 176 ft.

• 175 ft.

• 177 in.

• 177 ft.

Tags

CCSS.7.G.B.4

4. Complete the table. Use one of the approximate values for π discussed in class (for example 3.14, 22/7, 3.1416). What is the circumference of the magnifying glass if the diameter is 5.2 cm?

Round your answer to the nearest whole number

• 16 cm.

• 15 cm.

• 14 cm.

• 17 cm.

Tags

CCSS.7.G.B.4

5. Complete the table. Use one of the approximate values for π discussed in class (for example 3.14, 22/7, 3.1416). What is the diameter of the car tire with a circumference of 71.6 inches?

Round your answer to the nearest whole number

• 22 in.

• 24 in.

• 23 in.

• 22 cm.

Tags

CCSS.7.G.B.4

A is the center of the circle, and the length of CD is 15 centimeters. Name a segment that is a radius. How long is it?

• Segment AB, 15 centimeters

• Segment AC, 7.5 centimeters

• Segment AD, 15 centimeters

• Segment AD, 7.5 centimeters

A is the center of the circle, and the length of CD is 15 centimeters. Name a segment that is a diameter. How long is it?

• AB, 15 cm

• CD, 30 cm

• EF, 15 cm

• GH, 30 cm

Tags

CCSS.HSG.C.A.2

Consider the equation y = 1.5x + 2. Which of the following pairs of x and y values make the equation true?

• (0, 2)

• (2, 5)

• (4, 8)

• (6, 11)

Based on the graph from the previous question, can this be a proportional relationship? Why or why not?

HINT: Think of your coordinates and plotting those out

• Yes, because the graph is a straight line through the origin.

• No, because the graph is not a straight line.

• Yes, because the graph has a constant rate of change.

• No, because the graph does not pass through the origin.

Tags

CCSS.7.RP.A.2D