Geometry Review Part 1

Calculate the area.

• 200 in²

• 400 in²

• 250 in²

• 300 in²

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

• 20ft
• 5ft
• 31.4ft
• 62.8ft

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 2 yd what is the circumference?

• 4 yd
• 1 yd
• 12.56 yd
• 6.28 yd

If my diameter is 90cm, what is my circumference?

• 282.6cm
• 180 cm
• 90cm
• 565.2cm

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

What is the formula for circumference of a circle given the diameter?

• C = pi x r
• C = pi x 2r
• C = pi x D
• C = pi x 2D

Find the area of the circle

• 43.96
• 153.86
• 87.82
• 307.72

find the area of the circle below.

• 100 cm
• 225 cm
• 9 cm
• 28.26 cm