3/5 Classwork

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

What number is pi?

• 1.41

• 2.00

• 3.14

• 5.14

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

• Radius
• Diameter

What is the Circumference of this circle? 

(Use 3.14 for  $\pi$  )

• 452.39 cm

• 452.16 cm

• 75.36 cm

• 75.40 cm

What is the area of this circle?
(Use 3.14 for  $\pi$  )

• 75.40 cm

• 452.16  $cm^2$  

• 452.16 cm

• 75.40  $cm^2$  

Find the area of the parallelogram.

• 15.6 m²
• 30.6 m²
• 13.26 m²
• 13 - 50.... thats 47

Find the area.

• 27.3 mi²
• 54 mi²
• 27 mi²
• 54.6 mi²

What is an obtuse angle?

• An angle at 90 degrees
• An angle at 0 degrees
• An angle less than 90 degrees
• An angle greater than 90 degrees