Circles- Circumference & Area

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

Tags

CCSS.7.G.B.4

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

Tags

CCSS.7.G.B.4

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

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

Tags

CCSS.7.G.B.4

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

• 3.75 inches
• 15 inches
• 23.55 inches

Tags

CCSS.7.G.B.4

A circle has a radius of 150 mm. What is it's circumference? 

• 471 mm
• 942 mm
• 47.7 mm

Tags

CCSS.7.G.B.4

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

• A= π x d
• A = π x d²
• A= π x r²

Tags

CCSS.7.G.B.4

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

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

Tags

CCSS.7.G.B.4

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

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

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 14.4 meters?

• 651.1 meters
• 2604.44 meters
• 162.7 meters

Tags

CCSS.7.G.B.4

Ms. Boyett wants to build a circular swimming pool with a fountain in the center. She wants the fountain to be 18.6 feet from the edge of the pool. What would the distance be around the outside of the pool? 

• 116.8 yards
• 58.4 feet
• 58.4 yards
• 116.8 feet

Tags

CCSS.7.G.B.4