Geometry Area and Circumference

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's approximate circumference?

• 3 m

• 3π m

• 12 m

• 6π m

Find the area of the circle

• 18π in²

• 81π in²

• 324π in²

• 36π in²

What is the circumference of a circle with a radius of 21 cm?

• 42π cm

• 21π cm

• 110.25π cm

• 441π cm

What is the approximate circumference of a plate with a diameter of 10 inches? Use 3.14 for Pi.

Mathematical Equivalence

ON

Tags

CCSS.Math.Content.7.G.B.4

Mathematical Equivalence

ON

Give the circumference of the circle with a radius of 6.7 feet. Use 3.14 for the value of π. Round your answer to the nearest tenth.

Mathematical Equivalence

ON

A bike tire has a 7 inch radius. A car tire has a 16 inch radius. How much farther does the car tire travel per revolution? Use ​ (a)   to find how far the bike tire & car tire travels in one ​ (b)   . Then ​​ (c)   the ​ (d)   tire circumference by the ​ (e)   tire ​ circumference to figure out how much farther the car tire goes than the bike tire

• circumference

• revolution

• subtract

• car

• bike

• multiply

• area

The area of a circle is 113.04 cm.

The diameter of the circle is ​ (a)  

The radius of the circle is ​ (b)  

• 6 cm

• 12 cm

• 36 cm

• 18 cm

• 9 cm

• 3 cm

• 72 cm

• 24 cm

what is the area of a circle with the diameter of 10cm ?

• 10π cm²

• 25π cm²

• 20π cm²

• 100π cm²