Quizizz #1 (80% = bug point)

What is the diameter?

• 8
• 16
• 10
• 4

What is the radius?

• 18
• 72
• 38
• 14

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

what is the circumference of this circle ? Circumference: C = dπ

• 113.10

• 37.68 cm

• 37.70

• 68.4 cm

Find the circumference (to the nearest whole number) Circumference: C = dπ (you must find the diameter first)

• 85.15

• 87.96

• 116.5

• 86.51

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5cm

• 9.42 cm

• 9.35

• 9.32

find the area of the circle with radius 3 cm below.

Circumference: C = dπ

Area = A = πr²

• 100 cm²

• 225 cm²

• 9 cm²

• 28.26 cm²

What is the area of this circle?

Circumference: C = dπ

Area = A = πr²

• 6082.12

• 1520.53

• 1893.14

• 1292.92

What is the area of this circle?

Circumference: C = dπ

Area = A = πr²

• 15393.8

• 1248.12

• 5930.12

• 3848.45