Review: Circumference & Area of Circles

What is the area of this circle?

• 1256.64 sq. in.

• 31.41 sq. in.

• 314.16 sq. in.

• 123.12 sq. in.

What is the area of this circle?

• 6082.12 sq. ft.

• 1520.53 sq. ft.

• 1893.14 sq. ft.

• 1292.92 sq. ft.

What is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Find the circumference of the circle whose radius is 4 in

• 12.56 in

• 25.12 in

• 50.24 in

Find the circumference of the circle whose diameter is 10 m

• 31.4 m

• 62.8 m

• 15.7 m

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12

Find the area of this semicircle with a diameter of 34 km.

• 453.73 km
• 226.87 km
• 106.76 km
• 907.46 km

What is the area of this semicircle?

• 6.28 cm²

• 12.56 cm²

• 16.56 cm²

• 3.14 cm²

Fins the area of this quarter circle with a radius of 6 cm.

• 56.52 cm
• 113.04 cm
• 28.26 cm
• 37.68 cm

Find the area of this quarter circle with a radius of 18 cm.

• 1017.36 cm
• 254.34 cm
• 26.52 cm
• 123.65 cm