Area, Perimeter, Surface Area and Volume

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

If my radius is 10ft, what is my diameter?

• 20ft
• 5ft
• 31.4ft
• 62.8ft

what is the circumference of this circle ?

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

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft
• 42 ft
• 65.94 ft
• 131.95 ft

The diameter of a circle is:

• The measurement around the circle.
• The distance from an edge of a circle to another edge.
• The distance from the center of the circle to an edge of a circle
• The distance from an edge of a circle to another edge through the center. 

What is the radius of this circle?

• 18
• 10
• 9
• 8

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

What is the area of the composite figure?

• 48 cm²
• 90 cm²
• 78 cm²
• 12 cm²

The arrow shown is on a sign. What is the area of the arrow?

• 17 in2
• 40 in2
• 52 in2
• 61 in2

Find the area of the shaded region: 

• 350 cm²
• 137.5 cm²
• 212.5 cm²
• 484.2 cm²