7th Math 7.9B, 7.9C, 7.11C

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

• Diameter
• Radius

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

• Diameter
• Radius

Determine the radius of the penny

• 59.66 mm
• 9.5 mm
• 38 mm
• 119.32 mm

• 1,690,000 sq. ft.

• 1,240,000 sq. ft.

• 5,200 sq. ft.

• 2,600 sq. ft.

What is the circumference rounded to the nearest whole number?

• 50 cm

• 96 cm

• 24 cm

• 18 cm

Find the area of the circle

• 43.96 cm²

• 153.86 cm²

• 87.82 cm²

• 307.72 cm²

Based on the information given in the picture, what is the measure of angle x?

• 25 degrees

• 130 degrees

• 45 degrees

• Not Here

Identify the relationship:

• vertical

• supplementary (angles add up to 180^o)

• complementary (angles add up to 90^o)

A circle's diameter is 13 cm.  What is the approximate circumference?  

• 6.5 cm
• 13 cm
• 40.8 cm 
• 20.4 cm 

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360