Parts of a Circle, Area, Circumference

Front

The radius of a circle is 9 mm. What is the circle’s diameter?

Back

18 mm

Front

The diameter of a circle is 25 cm. What is the circle’s radius?

Back

12.5 cm

Front

The radius of a circle is 6 m. What is the area of the circle in terms of π?

Back

36π m²

Front

The area of a circle is 1296π in². What is the diameter of the circle?

Back

72 in

Front

Diameter of a circle is 12.5 km. What is the circumference in terms of π?

Back

12.5π km

Front

The circumference of a circle is 15.5π mm. What is the radius of the circle?

Back

7.75 mm

Front

A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a square unit?

Back

530.93

Front

Kiyo used wire fencing to form a border around a circular region with a radius of 5 yards. What was the total length of the border, rounded to the nearest tenth of a yard?

Back

31.4

Front

How does the area of the round pan compare to the area of the rectangular pan?

Back

The area of the round pan is greater than the area of the rectangular pan by about 8.5 square inches.

Front

Mean radius of Earth: 6,371.0 km. Mean radius of Moon: 1,737.5 km. What is the approximate difference in their mean circumferences, in km?

Back

29,113.1 km