Geometry Review Ch. 10

If a Circle has a radius of 3 cm and a diameter of 6cm , what is the circumference of the circle? 

• 9.42 cm
• 18.84 cm

If a circle has a circumference of 26.69 yards, what is it's diameter?

• 8.5 yards

• 83.8 yards

• 4.2 yards

• 17.6 yards

If a circle has a diameter of 45 feet, what is its radius?

• 90 feet
• 22.5 feet
• 45 feet
• 180 feet

The diameter of a circle is 7.5 inches. What is it's radius?

• 3.75 inches
• 15 inches
• 23.55 inches

What is the correct formula for the Area of a Circle? 

• A= π x d
• A = π x d²
• A= π x r²

What is the area of a circle that has a radius of 100 miles?

• 7,850 miles 
• 10,000 miles
• 31,400 miles

Find the area for a circle with a diameter of 8 feet. 

• 200.96 feet 
• 25.12 feet 
• 12.56 feet 
• 50.24 feet

Which is true of a minor arc?

• It forms half a circle.
• It forms a whole circle.
• It measures greater than 180 degrees. 
• It measures less than 180 degrees.

Which is true of a major arc?

• Forms half a circle.
• Forms a whole circle.
• Measures greater than 180 degrees.
• Measures less than 180 degrees.

Name a minor arc

• AD
• ADB
• AB
• CD