8. Circles

8.01 Characteristics of circles

8.02 Circumference and pi

8.03 Area of a circle

United States of America Virginia

Grade 6

8.02 Circumference and pi

Adaptive

Worksheet

Interactive practice questions

Find the circumference of the circle shown, correct to two decimal places.

A circle with a radius line drawn from the center to the circumference, labeled as $7$ cm. An arrowhead points to the end of the radius line on the circumference.

Easy

1min

Find the circumference of the circle shown, correct to one decimal place.

Easy

1min

If the radius of a circle is equal to $9$9 cm, find its circumference correct to two decimal places.

Easy

1min

If the radius of a circle is equal to $19$19 cm, find its circumference correct to two decimal places.

Easy

1min

Outcomes

6.MG.1

The student will identify the characteristics of circles and solve problems, including those in context, involving circumference and area.

6.MG.1bii

Investigate and describe the relationship between: ii) radius and circumference;

6.MG.1biii

Investigate and describe the relationship between: iii) diameter and circumference.

6.MG.1c

Develop an approximation for pi (3.14) by gathering data and comparing the circumference to the diameter of various circles, using concrete manipulatives or technological models.

6.MG.1d

Develop the formula for circumference using the relationship between diameter, radius, and pi.

6.MG.1e

Solve problems, including those in context, involving circumference and area of a circle when given the length of the diameter or radius.

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